List of online encyclopedias
Encyclopedia

General reference

Site Language Description Access
Archimedes-lab.org
Archimedes-lab.org
Archimedes-lab.org is a free and collaborative edutainment website developed and maintained by Gianni A. Sarcone and Marie-Jo Waeber, two authors and writers with more than twenty years of experience in the fields of visual thinking and education...

English Edutainment
Edutainment
Edutainment is a form of entertainment designed to educate as well as to amuse.-Overview:...

Free
Baidu Baike
Baidu Baike
Baidu Encyclopedia is a Chinese language collaborative Web-based encyclopedia provided by the Chinese search engine Baidu. Like Baidu itself, the encyclopedia is heavily self-censored in line with government regulations....

Chinese
Chinese language
The Chinese language is a language or language family consisting of varieties which are mutually intelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the branches of Sino-Tibetan family of languages...

Collaborative online encyclopedia hosted by the major Chinese search engine Baidu
Baidu
Baidu, Inc. , simply known as Baidu and incorporated on January 18, 2000, is a Chinese web services company headquartered in the Baidu Campus in Haidian District, Beijing, People's Republic of China....

Free
Banglapedia
Banglapedia
Banglapedia, or the National Encyclopedia of Bangladesh, is the first Bangladeshi encyclopedia. It is available in print, CD-ROM format and online, in both Bangla and English. The print version comprises ten 500-page volumes...

Bangla, English General interest Free
The Canadian Encyclopedia
The Canadian Encyclopedia
The Canadian Encyclopedia is a source of information on Canada. It is available online, at no cost. The Canadian Encyclopedia is available in both English and French and includes some 14,000 articles in each language on a wide variety of subjects including history, popular culture, events, people,...

English, French General interest (original content of the hard copy Canadian Encyclopedia) Free
Citizendium
Citizendium
Citizendium is an English-language wiki-based free encyclopedia project launched by Larry Sanger, who co-founded Wikipedia in 2001....

English General interest, wiki Free
Columbia Encyclopedia
Columbia Encyclopedia
The Columbia Encyclopedia is a one-volume encyclopedia produced by Columbia University Press and sold by the Gale Group. First published in 1935, and continuing its important relationship with Columbia University, the encyclopedia underwent major revisions in 1950 and 1963; the current edition is...

English General interest Free
Compton's Encyclopedia
Compton's Encyclopedia
Compton's Encyclopedia and Fact-Index is a home and school encyclopedia first published in 1922 as "Compton's Pictured Encyclopedia". The word "Pictured" was removed from the title with the 1968 edition. The encyclopedia is now advertised as Compton's by Britannica.Compton's Multimedia Encyclopedia...

English General interest Free
Conservapedia
Conservapedia
Conservapedia is an English-language wiki project written from a self-described American conservative Christian point of view. The website considers itself to be a supporter of "conservative, family-friendly" content...

English Semi-open wiki written from politically extreme far right-wing and Biblical literalist perspectives Free
Credo Reference English General interest and subject-specific encyclopedias Subscription
Crnogorska Enciklopedija
Crnogorska Enciklopedija
Crnogorska Enciklopedija was an internet encyclopedia project written in Montenegrin language, which had existed from 2006 to 2008. It was started by the IT Association of Montenegro in 2006 as an experimental project. Its goal is to provide a base for a future Montenegrin Wikipedia...

Montenegrin
Montenegrin language
Montenegrin is a name used for the Serbo-Croatian language as spoken by Montenegrins; it also refers to an incipient standardized form of the Shtokavian dialect of Serbo-Croatian used as the official language of Montenegro...

General interest (hopes to encourage a Montenegrin language Wikipedia) Defunct
Den Store Danske Encyklopædi
Den Store Danske Encyklopædi
Den Store Danske Encyklopædi is the most comprehensive contemporary Danish language encyclopedia. The 20 volumes of the encyclopedia were published successively between 1994 and 2001; a one-volume supplement was published in 2002 and two index volumes in 2003...

Danish
Danish language
Danish is a North Germanic language spoken by around six million people, principally in the country of Denmark. It is also spoken by 50,000 Germans of Danish ethnicity in the northern parts of Schleswig-Holstein, Germany, where it holds the status of minority language...

General interest Free
Deu Sözlük
Deu sozluk
Deu Sözlük is a collaborative hypertext Turkish dictionary and encyclopedia site that shares a similar concept with Everything2 or H2G2. Its aim is to build a community of contributors who believe that to share knowledge is to share life. The web site was created by two students of Dokuz Eylül...

Turkish
Turkish language
Turkish is a language spoken as a native language by over 83 million people worldwide, making it the most commonly spoken of the Turkic languages. Its speakers are located predominantly in Turkey and Northern Cyprus with smaller groups in Iraq, Greece, Bulgaria, the Republic of Macedonia, Kosovo,...

General interest Free
Digital Universe
Digital Universe
Digital Universe is a free online information service founded in 2006. The project aims to create a "network of portals designed to provide high-quality information and services to the public"...

English Collection of articles on educational, cultural, and scientific topics Free
Diplopedia
Diplopedia
Diplopedia, billed as the Encyclopedia of the United States Department of State, is a wiki running on a State internal Intranet, called "OpenNet". It houses a unique collection of information pertaining to diplomacy, international relations, and Department of State tradecraft.The wiki may be used...

English US State Department internal encyclopedic wiki, available for diplomats and overseas US agents to use Access only through the State Department
Doosan Encyclopedia
Doosan Encyclopedia
Doosan Encyclopedia is a Korean language encyclopedia published by Doosan Donga . The encyclopedia is based on the Dong-A Color Encyclopedia , which comprises 30 volumes and began to be published in 1982 by Dong-A Publishing...

Korean
Korean language
Korean is the official language of the country Korea, in both South and North. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China. There are about 78 million Korean speakers worldwide. In the 15th century, a national writing...

General interest Free
EcuRed
EcuRed
EcuRed is an online encyclopedia from Cuba built on MediaWiki software. Launched on December 13, 2010, the site, which hosts over 55,000 reference articles, biographies and academic works, aims to share Cuba's vision of the world....

Spanish General interest. Cuban Free
Ekşi Sözlük Turkish General interest Free
Encarta
Encarta
Microsoft Encarta was a digital multimedia encyclopedia published by Microsoft Corporation from 1993 to 2009. , the complete English version, Encarta Premium, consisted of more than 62,000 articles, numerous photos and illustrations, music clips, videos, interactive contents, timelines, maps and...

English General interest Defunct
Encyclopædia Britannica
Encyclopædia Britannica
The Encyclopædia Britannica , published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopaedia that is available in print, as a DVD, and on the Internet. It is written and continuously updated by about 100 full-time editors and more than 4,000 expert...

English General interest Limited free access and features, subscription for full access
Encyclopædia Britannica –1911 Edition English General interest Public domain: completely free access from several online sources
Encyclopedia of China
Encyclopedia of China
The Encyclopedia of China is the first large-entry modern encyclopedia in the Chinese language. The compilation began at 1978. Published by the Encyclopedia of China Publishing House, the encyclopedia was issued one volume at a time, beginning in 1980 with a volume on astronomy; the final volume...

Chinese General interest Subscription
Encyklopedia Internautica
Encyklopedia Internautica
Encyklopedia Internautica is a Polish Internet encyclopedia based on the Popularna Encyklopedia Powszechna of Pinnex. It is freely accessible on the pages of Interia, Poland's third largest internet portal. As of 2006 the Encyklopedia Internautica had more than 120,000 entries....

Polish
Polish language
Polish is a language of the Lechitic subgroup of West Slavic languages, used throughout Poland and by Polish minorities in other countries...

General interest Free
Enciclopedia Libre
Enciclopedia Libre
Enciclopedia Libre Universal en Español is a Spanish language wiki encyclopedia, released under the Creative Commons Attribution-ShareAlike License. It uses the MediaWiki software. It started as a fork of the Spanish Wikipedia.-History:...

Spanish Fork of the Spanish Wikipedia, using wiki
Wiki
A wiki is a website that allows the creation and editing of any number of interlinked web pages via a web browser using a simplified markup language or a WYSIWYG text editor. Wikis are typically powered by wiki software and are often used collaboratively by multiple users. Examples include...

 software, released under the GFDL
GNU Free Documentation License
The GNU Free Documentation License is a copyleft license for free documentation, designed by the Free Software Foundation for the GNU Project. It is similar to the GNU General Public License, giving readers the rights to copy, redistribute, and modify a work and requires all copies and...

Free
Enciclopedia Treccani
Enciclopedia Italiana
The Enciclopedia Italiana di scienze, lettere ed arti , is an Italian encyclopedia, generally regarded as the most authoritative of that language...

Italian
Italian language
Italian is a Romance language spoken mainly in Europe: Italy, Switzerland, San Marino, Vatican City, by minorities in Malta, Monaco, Croatia, Slovenia, France, Libya, Eritrea, and Somalia, and by immigrant communities in the Americas and Australia...

General interest Free
Encyclopædia Universalis
Encyclopædia Universalis
The Encyclopædia Universalis is a French-language general encyclopedia published by Encyclopædia Britannica, Inc., a privately held company. The articles of the Encyclopædia Universalis are aimed at educated adult readers, and written by a staff of full-time editors and expert contributors...

French General interest encyclopedia published by Encyclopædia Britannica Subscription
Everything2
Everything2
Everything2, Everything2, or E2 for short is a collaborative Web-based community consisting of a database of interlinked user-submitted written material. E2 is moderated for quality, but has no formal policy on subject matter...

English General interest, users can submit articles on the topic of essentially anything Free
FAQ
FAQ
Frequently asked questions are listed questions and answers, all supposed to be commonly asked in some context, and pertaining to a particular topic. "FAQ" is usually pronounced as an initialism rather than an acronym, but an acronym form does exist. Since the acronym FAQ originated in textual...

English A collection of searchable FAQs Free
GNUPedia
GNUpedia
GNUPedia was a project to create a free content encyclopedia under the auspices of the Free Software Foundation...

English General interest articles are released under a GNU license Free
Gran Enciclopèdia Catalana
Great Catalan Encyclopedia
The Great Catalan Encyclopedia is a Catalan-language encyclopedia, started by fascicles, and published in 1968 by Edicions 62. The soul of the work was written by Max Cahner, and the first director was Jordi Carbonell i Ballester...

Catalan General interest Free
Grand Larousse encyclopédique
Grand Larousse encyclopédique
The Grand Larousse encyclopédique en dix volumes is a French encyclopedic dictionary published by Larousse, published in volumes between February 1960 and August 1964, with two later supplements....

French General interest Free
Great Soviet Encyclopedia
Great Soviet Encyclopedia
The Great Soviet Encyclopedia is one of the largest and most comprehensive encyclopedias in Russian and in the world, issued by the Soviet state from 1926 to 1990, and again since 2002 .-Editions:There were three editions...

Russian, English General interest, often from the former official Soviet viewpoint. Free
Grolier Multimedia Encyclopedia English Targeted at the younger researcher, it contains the text of the Academic American Encyclopedia
Academic American Encyclopedia
Academic American Encyclopedia is a 21-volume general English-language encyclopedia published in 1980. It was first produced by Arête Publishing, the American subsidiary of the Dutch publishing company VNU ....

Subscription
Holocaust Encyclopedia
Holocaust Encyclopedia
The Holocaust Encyclopedia is an online encyclopedia, published by the United States Holocaust Memorial Museum, offering detailed information about The Holocaust and the events surrounding it.- External links :*...

English, Arabic, Persian, French, Spanish Holocaust-related articles Free
Hudong Chinese General interest. China's largest wiki Free
Hutchinson Encyclopedia
Hutchinson Encyclopedia
The Hutchinson Encyclopedia is an English-language general encyclopedia. It is a single volume designed for use in the home, libraries and schools. It attempts to be readable by reducing the use of technical language...

English General interest Free
Infoplease English General interest Free
Internetowa encyklopedia PWN Polish
Polish language
Polish is a language of the Lechitic subgroup of West Slavic languages, used throughout Poland and by Polish minorities in other countries...

General interest Free
Interpedia
Interpedia
Interpedia was the name given to the first proposals for an Internet encyclopedia which would allow anyone to contribute by writing articles and submitting them to the central catalog of all Interpedia pages....

English General interest, the first site to propose a free encyclopedia written by users Defunct
Enciklopedio Kalblanda Esperanto General interest. The first online Esperanto encyclopedia Defunct
Kdo byl kdo
Kdo byl kdo
Kdo byl kdo is the name of two major encyclopedic works in Czech, published as books, CD-ROMs and also available online. Their publisher is Libri:* Kdo byl kdo v našich dějinách ve 20...

Czech
Czech language
Czech is a West Slavic language with about 12 million native speakers; it is the majority language in the Czech Republic and spoken by Czechs worldwide. The language was known as Bohemian in English until the late 19th century...

Biographies on notable Czech and Slovak people Free
Keyinpedia
Keyinpedia
Keyinpedia is an online Chinese encyclopedia based in mainland China. It started operation in February, 2005. By November, 2006, keyinpedia contains 38,112 articles, many of which are the same as Wikipedia....

Chinese General interest Free
Knol
Knol
Knol is a Google project that aims to include user-written articles on a range of topics. The project was led by Udi Manber of Google, announced December 13, 2007, and was opened in beta to the public on July 23, 2008 with a few hundred articles mostly in the health and medical field.Knol has no...

English General interest Free
Kussmaul Encyclopedia
Wes Kussmaul
Wes Kussmaul, author of several books about online security, is the founder of the Kussmaul Encyclopedia, the first online encyclopedia.In 1971, while stationed at Whiteman Air Force Base , Kussmaul received a degree in physics from the University of Central Missouri in Warrensburg, Missouri...

English General interest with emphasis on science and the arts. First commercial online encyclopedia (1981–93). Subscription
Marefa
Marefa
Marefa is an not-for-profit online encyclopedia project that uses the wiki system to provide a free Arabic encyclopedia similar to Wikipedia. It was set up by Nayel Shafei on February 16, 2007...

Arabic
Arabic language
Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

General interest Free
Metapedia
Metapedia
Metapedia is a white nationalist and white supremacist, extreme right-wing and multilingual online encyclopedia. It was officially launched on October 26, 2006 with the Swedish-language edition. The English section was launched on April 28, 2007...

Hungarian, German, English, Spanish, Swedish, Romanian, Estonian, French, Slovenian, Czech, Portuguese, Norwegian, Croatian, Danish, Greek, Dutch Far right-wing, white nationalist and neo nazi encyclopedia Free
Meyers Konversations-Lexikon 4. ed. 1888 - 1892
Meyers Konversations-Lexikon
Meyers Konversations-Lexikon or Meyers Lexikon was a major German encyclopedia that existed in various editions, and several titles, from 1839 until 1984, when it merged with the Brockhaus encyclopedia....

German General interest Free
Nationalencyklopedin
Nationalencyklopedin
Nationalencyklopedin is the most comprehensive contemporary Swedish language encyclopedia, initiated by a favourable loan from the Government of Sweden of 17 million Swedish kronor in 1980, which was repaid by December 1990...

Swedish General interest, the most comprehensive contemporary Swedish language encyclopedia Subscription
New World Encyclopedia English General interest Free
Nupedia
Nupedia
Nupedia was an English-language Web-based encyclopedia whose articles were written by experts and licensed as free content. It was founded by Jimmy Wales and underwritten by Bomis, with Larry Sanger as editor-in-chief...

English Combined with GNUpedia Free
Open Site
Open Site
Open-Site, the Open Encyclopedia Project, is a free internet encyclopedia founded in 2002 by Michael J. Flickinger in an effort to build a free categorized community-built encyclopedia, inspired by the Open Directory Project...

English Categorized community-built encyclopedia, inspired by the Open Directory Project
Open Directory Project
The Open Directory Project , also known as Dmoz , is a multilingual open content directory of World Wide Web links. It is owned by Netscape but it is constructed and maintained by a community of volunteer editors.ODP uses a hierarchical ontology scheme for organizing site listings...

Free
Private Sözlük
Private Sözlük
Private Sözlük collaborative hypertext Turkish dictionary and encyclopedia site that shares a similar concept with Ekşi Sözlük. Its aim is to build a community of contributors who believe that to share knowledge is to share life. The web site was created by Nursel Evecan, who posts under the...

Turkish
Turkish language
Turkish is a language spoken as a native language by over 83 million people worldwide, making it the most commonly spoken of the Turkic languages. Its speakers are located predominantly in Turkey and Northern Cyprus with smaller groups in Iraq, Greece, Bulgaria, the Republic of Macedonia, Kosovo,...

Collaborative hypertext Turkish dictionary and encyclopedia site that shares a similar concept with Everything2 or H2G2 Free
Probert Encyclopaedia
Probert Encyclopaedia
The Probert Encyclopaedia is an online encyclopedia containing over 110,000 entries organized topically, written and published by Matthew Probert under the name Probert Publishing...

English General interest Free
Proleksis Encyclopedia
Proleksis Encyclopedia
The Proleksis Encyclopedia is the first Croatian general and national online encyclopedia.Proleksis Encyclopedia features more than 62,000 articles and more than 17,000 photographs, illustrations and maps. It is freely available to registered users of CARNet, the Croatian national research and...

Croatian
Croatian language
Croatian is the collective name for the standard language and dialects spoken by Croats, principally in Croatia, Bosnia and Herzegovina, the Serbian province of Vojvodina and other neighbouring countries...

General and national encyclopedia Free with registration
Quid
Quid (encyclopedia)
Quid is a French encyclopedia, established in 1963 by Dominique Frémy. It was published annually between 1963 and 2007, first by Plon and later by Éditions Robert Laffont , and was the most popular encyclopedic reference work in France.The presentation is very compressed, and abbreviations are...

French General interest Free
Sarvavijnanakosam
Sarvavijnanakosam
Sarvavijnanakosam, known in English as the Malayalam Encyclopaedia, is a general encyclopedia in the Malayalam language. It is intended to be a "a compendium of world knowledge", covering over 32,000 topics. The first volume was published in 1972, and currently 15 of the 20 volumes have been...

Malayalam
Malayalam language
Malayalam , is one of the four major Dravidian languages of southern India. It is one of the 22 scheduled languages of India with official language status in the state of Kerala and the union territories of Lakshadweep and Pondicherry. It is spoken by 35.9 million people...

General interest Free
Scholarpedia
Scholarpedia
Scholarpedia is an English-language online wiki-based encyclopedia that uses the same MediaWiki software as Wikipedia, but has features more commonly associated with open-access online academic journals....

English Articles are written by scholars and peer-reviewed for accuracy Free
Store norske leksikon
Store norske leksikon
Store norske leksikon, abbreviated SNL, is currently the second most comprehensive contemporary Norwegian language encyclopedia. The SNL was created in 1978 when the two publishing houses Aschehoug and Gyldendal merged their encyclopedias and created the company Kunnskapsforlaget. The name...

Norwegian (Bokmål)
Bokmål
Bokmål is one of two official Norwegian written standard languages, the other being Nynorsk. Bokmål is used by 85–90% of the population in Norway, and is the standard most commonly taught to foreign students of the Norwegian language....

General interest Free
Superpedia
Superpedia
Superpedia is an Indonesian education dictionary and encyclopedia. Initiated by Rumah Ilmu Indonesia Foundation. Started at 19 October 2008....

Bahasa Indonesia Indonesian, based on MediaWiki Free
Susning.nu
Susning.nu
Susning.nu was a Swedish language wiki, started in October 2001 by Lars Aronsson . In its first three years , Susning.nu ran as an open wiki that anyone could edit...

Swedish A Swedish language wiki 2001–2009 Defunct
Từ điển Bách khoa toàn thư Việt Nam
Từ điển Bách khoa toàn thư Việt Nam
Từ điển Bách khoa toàn thư Việt Nam is a state-sponsored encyclopedia that was published in 2005. It also is the first state encyclopedia of the Socialist Republic of Vietnam...

Vietnamese General interest. State-sponsored encyclopedia. Free
Veropedia
Veropedia
Veropedia was a free, advertising-supported Internet encyclopedia project launched in late October 2007. It was taken down in January 2009 pending creation of a new version, which never arrived....

English, Dutch, Spanish Mirrors stable versions of selected English Wikipedia
English Wikipedia
The English Wikipedia is the English-language edition of the free online encyclopedia Wikipedia. Founded on 15 January 2001 and reaching three million articles by August 2009, it was the first edition of Wikipedia and remains the largest, with almost three times as many articles as the next...

 articles
Defunct
Vikidia
Vikidia
Vikidia is an online encyclopedia wiki for children, that runs on MediaWiki software. It is available in both French and Spanish. The site focuses on presenting articles readable by children from eight to thirteen years of age, as well as providing a resource for those learning Spanish and French...

French, Spanish Articles designed for children ages 8–13 Free
WIEM Encyklopedia
WIEM Encyklopedia
WIEM Encyklopedia is a Polish Internet encyclopedia....

Polish
Polish language
Polish is a language of the Lechitic subgroup of West Slavic languages, used throughout Poland and by Polish minorities in other countries...

General interest Free
Wikipedia
Wikipedia
Wikipedia is a free, web-based, collaborative, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Its 20 million articles have been written collaboratively by volunteers around the world. Almost all of its articles can be edited by anyone with access to the site,...

See list here General interest wiki
Wiki
A wiki is a website that allows the creation and editing of any number of interlinked web pages via a web browser using a simplified markup language or a WYSIWYG text editor. Wikis are typically powered by wiki software and are often used collaboratively by multiple users. Examples include...

Free, copyleft
Copyleft
Copyleft is a play on the word copyright to describe the practice of using copyright law to offer the right to distribute copies and modified versions of a work and requiring that the same rights be preserved in modified versions of the work...

Winkler Prins encyclopedie Dutch General interest, three different age levels Subscription
World Book Encyclopedia
World Book Encyclopedia
The World Book Encyclopedia is an encyclopedia published in the United States. It is self-described as "the number-one selling print encyclopedia in the world." The encyclopedia is designed to cover major areas of knowledge uniformly, but it shows particular strength in scientific, technical, and...

English General interest Subscription
Wikinfo English Holds multiple articles on subjects from different points of view Free

Biography

Site Language Description Access
Australian Dictionary of Biography
Australian Dictionary of Biography
The Australian Dictionary of Biography is a national, co-operative enterprise, founded and maintained by the Australian National University to produce authoritative biographical articles on eminent people in Australia's history....

English Entries on notable Australians who have died Free
Dictionary of Canadian Biography
Dictionary of Canadian Biography
The Dictionary of Canadian Biography is a dictionary of biographical entries for individuals who have contributed to the history of Canada. The DCB, which was initiated in 1959, is a collaboration between the University of Toronto and Université Laval...

English, French Entries on notable Canadians Free
Dictionary of Greek and Roman Biography and Mythology
Dictionary of Greek and Roman Biography and Mythology
The Dictionary of Greek and Roman Biography and Mythology is an encyclopedia/biographical dictionary.- Characteristic :...

English Focuses on topics dealing with Greek and Roman mythology and people Free
Dictionary of National Biography
Dictionary of National Biography
The Dictionary of National Biography is a standard work of reference on notable figures from British history, published from 1885...

English Comprehensive 66-volume reference work on notable figures from British history in every profession from politics to art Subscription
Dictionary of New Zealand Biography
Dictionary of New Zealand Biography
The Dictionary of New Zealand Biography contains biographies for over 3,000 New Zealanders. It is available in both English and Maori. All volumes of the Dictionary of New Zealand Biography are available online....

English, Māori
Maori language
Māori or te reo Māori , commonly te reo , is the language of the indigenous population of New Zealand, the Māori. It has the status of an official language in New Zealand...

Entries on notable New Zealanders who have died Free
glbtq.com
Glbtq.com
glbtq.com is an online encyclopedia that presents detailed biographies of notable gay, lesbian, bisexual, transgender, and queer people. It was named one of the "Best Free Reference Web Sites" in 2005 by the American Library Association....

English Entries on notable homosexuals Free
MacTutor History of Mathematics archive
MacTutor History of Mathematics archive
The MacTutor History of Mathematics archive is a website maintained by John J. O'Connor and Edmund F. Robertson and hosted by the University of St Andrews in Scotland...

English Biographies of mathematicians Free
MyWikiBiz
MyWikiBiz
MyWikiBiz is a wiki directory that allows people and enterprises to write about themselves. The brand began as a service creating Wikipedia articles for paying corporations; the founder and owner of MyWikiBiz, Gregory Kohs, was soon blocked from Wikipedia. , the MyWikiBiz directory contained over...

English A wiki encyclopedia that allows people and enterprises to write about themselves Free
Who's Who
Who's Who
Who's Who is the title of a number of reference publications, generally containing concise biographical information on a particular group of people...

English General biographies, mainly of British people Subscription

Classical antiquities, arts, and literature

Site Language Description Access
A Dictionary of Greek and Roman Antiquities
A Dictionary of Greek and Roman Antiquities
A Dictionary of Greek and Roman Antiquities is an English-language encyclopedia first published in 1842 and then in many revised editions through 1890...

English Incorporates text from the 19th century encyclopedia of the same name. Focuses on topics of cultural and historical Greek
Greece
Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

 and Roman
Rome
Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 significance.
Free
Encyclopedia Mythica
Encyclopedia Mythica
Encyclopedia Mythica is an internet encyclopedia of folklore, mythology, and religion. It covers the mythology of most of the world, with sections spanning Europe, Africa, Asia, the Middle East, both North and South America, and Oceania. This encyclopedia was founded in June 1995 as a small site...

English Contains articles on mythology
Mythology
The term mythology can refer either to the study of myths, or to a body or collection of myths. As examples, comparative mythology is the study of connections between myths from different cultures, whereas Greek mythology is the body of myths from ancient Greece...

, folklore
Folklore
Folklore consists of legends, music, oral history, proverbs, jokes, popular beliefs, fairy tales and customs that are the traditions of a culture, subculture, or group. It is also the set of practices through which those expressive genres are shared. The study of folklore is sometimes called...

, and religion
Religion
Religion is a collection of cultural systems, belief systems, and worldviews that establishes symbols that relate humanity to spirituality and, sometimes, to moral values. Many religions have narratives, symbols, traditions and sacred histories that are intended to give meaning to life or to...

Free
Harpers Dictionary of Classical Antiquities
Harpers Dictionary of Classical Antiquities
Harpers Dictionary of Classical Literature and Antiquities is an English-language encyclopedia on subjects of classical antiquity. It was edited by Harry Thurston Peck and published 1898 by Harper & Brothers in New York...

English Covers subjects of classical antiquity Free
The Literary Encyclopedia
The Literary Encyclopedia
The Literary Encyclopedia is an online reference work first published in October 2000 which, as of May 2008, offers freely available content together with full content and services for subscribing members. Articles are written by "nearly 2000 named scholars, most of whom are current university...

English Literature
Literature
Literature is the art of written works, and is not bound to published sources...

 related articles
Subscription
SIKART
SIKART
SIKART is a biographical dictionary and a database on visual art in Switzerland and Liechtenstein. It is published online by the Swiss Institute for Art Research...

English, German, French, Italian Biographical dictionary and database of Swiss visual art Free

Culture and country-specific

Site Language Description Access
Aeiou Encyclopedia
Aeiou Encyclopedia
AEIOU is a free online collection of reference works in both German and English about Austria-related topics.-Background:...

German
German language
German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

, English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

Online database of Austrian culture Free
Encyclopedia of Alabama
Encyclopedia of Alabama
The Encyclopedia of Alabama is a comprehensive source of information on the state of Alabama's history, culture, geography, and natural environment. It is a state-wide collaboration that involves more than forty institutions from across Alabama that share their archives with the project...

English Articles on the state of Alabama
Alabama
Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...

Free
Encyclopedia of Arkansas
Encyclopedia of Arkansas History & Culture
The Encyclopedia of Arkansas History & Culture , a web-based reference work, is a project of the Butler Center for Arkansas Studies at the Central Arkansas Library System and is the only state encyclopedia sponsored by a public library...

English A project of the Central Arkansas Library System
Central Arkansas Library System
Central Arkansas Library System is a public library system headquartered in Little Rock, Arkansas, United States. The system serves Pulaski County and Perry County.The Main Library in Downtown Little Rock is the main branch of the system...

 and is the only U.S. state encyclopedia sponsored by a public library
Free
Dictionary of Greek and Roman Geography
Dictionary of Greek and Roman Geography
The Dictionary of Greek and Roman Geography, first published in 1854, was the last of a series of classical dictionaries edited by the English scholar William Smith , which included as sister works A Dictionary of Greek and Roman Antiquities and the Dictionary of Greek and Roman Biography and...

English Focuses on topic relating to Greek and Roman geography Free
Encyclopædia Iranica
Encyclopædia Iranica
Encyclopædia Iranica is a project whose goal is to create a comprehensive and authoritative English language encyclopedia about the history, culture, and civilization of Iranian peoples from prehistory to modern times...

English, plans for a future Persian
Persian language
Persian is an Iranian language within the Indo-Iranian branch of the Indo-European languages. It is primarily spoken in Iran, Afghanistan, Tajikistan and countries which historically came under Persian influence...

 version
Topics on the influence of the Iranian peoples
Iranian peoples
The Iranian peoples are an Indo-European ethnic-linguistic group, consisting of the speakers of Iranian languages, a major branch of the Indo-European language family, as such forming a branch of Indo-European-speaking peoples...

 throughout history
Free
Encyclopedia of Korean Culture
Encyclopedia of Korean Culture
Encyclopedia of Korean Language is a Korean language encyclopedia published by the Academy of Korean Studies and DongBang Media Co. In 2001, the digital edition EncyKorea was published on CD-ROM and DVD...

Korean Korea-related topics Free
Gazetteer for Scotland
Gazetteer for Scotland
The Gazetteer for Scotland is a gazetteer covering the geography, history and people of Scotland. It was conceived in 1995 by Bruce Gittings of the University of Edinburgh and David Munro of the Royal Scottish Geographical Society, and contains 15,500 entries as of January 2008, making it one of...

English Articles on the geography and locations of Scotland
Scotland
Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

Free
Jewish Encyclopedia
Jewish Encyclopedia
The Jewish Encyclopedia is an encyclopedia originally published in New York between 1901 and 1906 by Funk and Wagnalls. It contained over 15,000 articles in 12 volumes on the history and then-current state of Judaism and the Jews as of 1901...

English The state of Judaism
Judaism
Judaism ) is the "religion, philosophy, and way of life" of the Jewish people...

 and the Jews
Jews
The Jews , also known as the Jewish people, are a nation and ethnoreligious group originating in the Israelites or Hebrews of the Ancient Near East. The Jewish ethnicity, nationality, and religion are strongly interrelated, as Judaism is the traditional faith of the Jewish nation...

 (as of 1901)
Free, Public domain
Jewish Virtual Library
Jewish Virtual Library
Jewish Virtual Library is an online encyclopedia published by the American-Israeli Cooperative Enterprise . Established in 1993, it is a comprehensive website covering Israel, the Jewish people, and Jewish culture.-History:...

English Portals to essential Jewish topics Free
Kodansha Encyclopedia of Japan
Kodansha Encyclopedia of Japan
The Kodansha Encyclopedia of Japan is a comprehensive English-language encyclopedia first published in 1983 that covers a broad range of topics on Japan....

English Comprehensive articles on Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

ese arts and culture, history and politics, etc.
Subscription
Looklex Encyclopaedia (about) English (based in Norway
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

)
Middle East
Middle East
The Middle East is a region that encompasses Western Asia and Northern Africa. It is often used as a synonym for Near East, in opposition to Far East...

 and North African topics (known as CiAS 1996-1999)
Free
New Georgia Encyclopedia
New Georgia Encyclopedia
The New Georgia Encyclopedia is a web-based encyclopedia containing over 2,000 articles about the state of Georgia.The Georgia Humanities Council, the Office of the Governor of Georgia, the University of Georgia Press, and the University System of Georgia/GALILEO have collaborated in the funding...

English Articles on the U.S. state Georgia
Georgia (U.S. state)
Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

Free
Oregon Blue Book
Oregon Blue Book
The Oregon Blue Book is the official directory and fact book for the U.S. state of Oregon copyrighted by the Oregon Secretary of State and published by the Office of the Secretary's Archives Division. As Governor Ted Kulongoski notes in his introduction for the 2005–2006 edition, it "provides...

English Articles pertaining to Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

Free
The Oregon Encyclopedia
The Oregon Encyclopedia
The Oregon Encyclopedia of History and Culture is a collaborative encyclopedia, under development, focused on the history of the U.S. state of Oregon. The encyclopedia is a project of Portland State University's History Department and the Oregon Historical Society...

English Articles pertaining to Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

Free
Panyathai
Panyathai
Panyathai is a Thai online encyclopedia started on 1 December 2006 with 80 articles, mainly in Thai. Established in honor of King Bhumibol Adulyadej, the site plan is to have at least 80,000 articles by 5 December 2007, the king's 80th birthday...

Thai
Thai language
Thai , also known as Central Thai and Siamese, is the national and official language of Thailand and the native language of the Thai people, Thailand's dominant ethnic group. Thai is a member of the Tai group of the Tai–Kadai language family. Historical linguists have been unable to definitively...

, limited English
General interest. Designed to honor the Thai king Bhumibol Adulyadej
Bhumibol Adulyadej
Bhumibol Adulyadej is the current King of Thailand. He is known as Rama IX...

Free
TAGIPEDIA
TAGIPEDIA
TAG-PEDIA is an online encyclopedia started April 7, 2008 by The Association of Arab Universities and the Talal Abu-Ghazaleh Organization. Both organizations, educational institutions and research centers will provide information...

Arabic, English Articles on Arab
Arab
Arab people, also known as Arabs , are a panethnicity primarily living in the Arab world, which is located in Western Asia and North Africa. They are identified as such on one or more of genealogical, linguistic, or cultural grounds, with tribal affiliations, and intra-tribal relationships playing...

 heritage and content
Free with registration
Te Ara: The Encyclopedia of New Zealand English, Māori
Maori language
Māori or te reo Māori , commonly te reo , is the language of the indigenous population of New Zealand, the Māori. It has the status of an official language in New Zealand...

The New Zealand government site with content on the country Free
Encyclopedia of Ukraine
Encyclopedia of Ukraine
The Encyclopedia of Ukraine is an English language, free, online encyclopedia covering wide range of issueson Ukraine, including its history, people, geography, economy, culture etc....

English Ukraine
Ukraine
Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...

 related articles
Free
Encyclopedia Virginia English Articles on Virginia
Virginia
The Commonwealth of Virginia , is a U.S. state on the Atlantic Coast of the Southern United States. Virginia is nicknamed the "Old Dominion" and sometimes the "Mother of Presidents" after the eight U.S. presidents born there...

's history and culture
Free
Wikanda
Wikanda
Wikanda is an Andalusian encyclopedia based in MediaWiki. It has more than 50000 articles. It is divided into eight wikis and a meta project:* Almeriapedia * Cadizpedia * Cordobapedia...

Spanish Andalusian encyclopedia Free

Pop culture and fiction

Site Language Description Access
Don Markstein's Toonopedia
Don Markstein's Toonopedia
Don Markstein's Toonopedia was a web encyclopedia of print cartoons, comic strips and animation. Don D...

English Focuses on articles pertaining to print and animated cartoons Free
H2G2
H2g2
h2g2 is a British-based collaborative online encyclopedia project engaged in the construction of, in its own words, "an unconventional guide to life, the universe, and everything", in the spirit of the fictional publication The Hitchhiker's Guide to the Galaxy from the science fiction comedy series...

English Collection of sometimes humorous encyclopedia articles, based on Douglas Adams's The Hitchhiker's Guide to the Galaxy. Free
Heroes Wiki
Heroes Wiki
Heroes Wiki is a wiki-powered reference site for NBC's science fiction drama Heroes. Launched on October 10, 2006, the site uses MediaWiki software to maintain a user-created database of information. Heroes Wiki is supported by revenue from advertising, part of which is donated to various charities...

English, Dutch, French, German, Hebrew, Italian, Portuguese, Spanish, Swedish, Turkish Contains articles pertaining to the American television drama Heroes
Heroes (TV series)
Heroes is an American science fiction television drama series created by Tim Kring that appeared on NBC for four seasons from September 25, 2006 through February 8, 2010. The series tells the stories of ordinary people who discover superhuman abilities, and how these abilities take effect in the...

.
Free
Lostpedia
Lostpedia
Lostpedia is a wiki-powered online encyclopedia of information regarding the American television drama Lost. Launched on September 22, 2005 by Kevin Croy, the site uses MediaWiki software to maintain a user-created database of information...

English, German, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, Chinese Contains articles pertaining to the hit drama Lost
Lost (TV series)
Lost is an American television series that originally aired on ABC from September 22, 2004 to May 23, 2010, consisting of six seasons. Lost is a drama series that follows the survivors of the crash of a commercial passenger jet flying between Sydney and Los Angeles, on a mysterious tropical island...

Free
Memory Alpha
Memory Alpha
Memory Alpha is a wiki that is an encyclopedic reference for topics related to the Star Trek fictional universe. Conceived by Harry Doddema and Dan Carlson in September 2003 and officially launched on December 5 of that year, it uses the wiki model and is hosted by Wikia, Inc. on the MediaWiki...

English, Bulgarian, Chinese, Czech, Dutch, Esperanto, French, German, Polish, Portuguese, Russian, Serbian, Spanish and Swedish Articles about Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

Free
The Rocklopedia Fakebandica
The Rocklopedia Fakebandica
The Rocklopedia Fakebandica, by T. Mike Childs, is an illustrated encyclopedia of fictional musical groups and musicians, as seen in movies and television. It was officially released November 6, 2004. The book catalogs such better-known fake bands as Spinal Tap, The Monkees, The Rutles, and The...

English Articles on fake bands from popular entertainment Free
TV Tropes
TV Tropes
TV Tropes is a wiki which collects and expands on various conventions and devices found within creative works. Since its establishment in 2004, the site has gone from covering only television and film tropes to also covering those in a number of other media such as literature, comics, video-games,...

English, German, Esperanto, Spanish, French, Norwegian, Finnish, Swedish, Al Bhed, Quenya Articles related to the devices and conventions that a fiction writer can reasonably rely on as being present in the audience members' minds and expectations Free
Wookieepedia
Wookieepedia
Wookieepedia, the Star Wars Wiki is an online encyclopedia for information on the Star Wars fictional universe—including information on all six films, as well as The Clone Wars and the Expanded Universe...

English, German, Spanish, Bulgarian
Bulgarian language
Bulgarian is an Indo-European language, a member of the Slavic linguistic group.Bulgarian, along with the closely related Macedonian language, demonstrates several linguistic characteristics that set it apart from all other Slavic languages such as the elimination of case declension, the...

, Danish
Danish language
Danish is a North Germanic language spoken by around six million people, principally in the country of Denmark. It is also spoken by 50,000 Germans of Danish ethnicity in the northern parts of Schleswig-Holstein, Germany, where it holds the status of minority language...

, Finnish
Finnish language
Finnish is the language spoken by the majority of the population in Finland Primarily for use by restaurant menus and by ethnic Finns outside Finland. It is one of the two official languages of Finland and an official minority language in Sweden. In Sweden, both standard Finnish and Meänkieli, a...

, French, Croatian
Croatian language
Croatian is the collective name for the standard language and dialects spoken by Croats, principally in Croatia, Bosnia and Herzegovina, the Serbian province of Vojvodina and other neighbouring countries...

, Hungarian
Hungarian language
Hungarian is a Uralic language, part of the Ugric group. With some 14 million speakers, it is one of the most widely spoken non-Indo-European languages in Europe....

, Italian, Japanese, Dutch, Norwegian
Norwegian language
Norwegian is a North Germanic language spoken primarily in Norway, where it is the official language. Together with Swedish and Danish, Norwegian forms a continuum of more or less mutually intelligible local and regional variants .These Scandinavian languages together with the Faroese language...

, Polish
Polish language
Polish is a language of the Lechitic subgroup of West Slavic languages, used throughout Poland and by Polish minorities in other countries...

, Portuguese, Russian, Romanian
Romanian language
Romanian Romanian Romanian (or Daco-Romanian; obsolete spellings Rumanian, Roumanian; self-designation: română, limba română ("the Romanian language") or românește (lit. "in Romanian") is a Romance language spoken by around 24 to 28 million people, primarily in Romania and Moldova...

, Slovak
Slovak language
Slovak , is an Indo-European language that belongs to the West Slavic languages .Slovak is the official language of Slovakia, where it is spoken by 5 million people...

, Slovene, Swedish, Chinese
Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

-related articles
Free
WoWWiki
WoWWiki
- External links :*...

English, German, Spanish, French, Czech, Danish, Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

, Persian
Persian language
Persian is an Iranian language within the Indo-Iranian branch of the Indo-European languages. It is primarily spoken in Iran, Afghanistan, Tajikistan and countries which historically came under Persian influence...

, Finnish, Hebrew
Hebrew language
Hebrew is a Semitic language of the Afroasiatic language family. Culturally, is it considered by Jews and other religious groups as the language of the Jewish people, though other Jewish languages had originated among diaspora Jews, and the Hebrew language is also used by non-Jewish groups, such...

, Hungarian, Icelandic
Icelandic language
Icelandic is a North Germanic language, the main language of Iceland. Its closest relative is Faroese.Icelandic is an Indo-European language belonging to the North Germanic or Nordic branch of the Germanic languages. Historically, it was the westernmost of the Indo-European languages prior to the...

, Italian, Lithuanian
Lithuanian language
Lithuanian is the official state language of Lithuania and is recognized as one of the official languages of the European Union. There are about 2.96 million native Lithuanian speakers in Lithuania and about 170,000 abroad. Lithuanian is a Baltic language, closely related to Latvian, although they...

, Latvian
Latvian language
Latvian is the official state language of Latvia. It is also sometimes referred to as Lettish. There are about 1.4 million native Latvian speakers in Latvia and about 150,000 abroad. The Latvian language has a relatively large number of non-native speakers, atypical for a small language...

, Dutch, Nynorsk
Nynorsk
Nynorsk or New Norwegian is one of two official written standards for the Norwegian language, the other being Bokmål. The standard language was created by Ivar Aasen during the mid-19th century, to provide a Norwegian alternative to the Danish language which was commonly written in Norway at the...

, Bokmål
Bokmål
Bokmål is one of two official Norwegian written standard languages, the other being Nynorsk. Bokmål is used by 85–90% of the population in Norway, and is the standard most commonly taught to foreign students of the Norwegian language....

, Polish, Portuguese, Brazilian Portuguese
Brazilian Portuguese
Brazilian Portuguese is a group of Portuguese dialects written and spoken by most of the 190 million inhabitants of Brazil and by a few million Brazilian emigrants, mainly in the United States, United Kingdom, Portugal, Canada, Japan and Paraguay....

, Russian, Slovak
Slovak language
Slovak , is an Indo-European language that belongs to the West Slavic languages .Slovak is the official language of Slovakia, where it is spoken by 5 million people...

, Korean, Japanese, Chinese
World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

-related articles
Free
Wowpedia English, Spanish, French, Czech, Russian World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

 and Warcraft
Warcraft
Warcraft: Orcs & Humans is a real-time strategy game , developed by Blizzard Entertainment and published by Blizzard and Interplay Entertainment. The MS-DOS version was released in November 1994 and the Macintosh version in late 1996. Sales were fairly high, reviewers were mostly impressed, and the...

 Universe -related articles
Free

Mathematics

Site Language Description Access
Cut-the-knot
Cut-the-knot
Cut-the-knot is a free, advertisement-funded educational website maintained by Alexander Bogomolny and devoted to popular exposition of many topics in mathematics. The site has won more than 20 awards from scientific and educational publications, including a Scientific American Web Award in 2003,...

English Mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

 related topics
Free
Encyclopaedia of Mathematics
Encyclopaedia of Mathematics
The Encyclopaedia of Mathematics is a large reference work in mathematics. It is available in book form and on CD-ROM....

English Encompasses articles on the topic of mathematics
Mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...

Free
EqWorld
EqWorld
EqWorld is a free online mathematics reference work that lists information about mathematical equations.It covers ordinary differential, partial differential, integral, functional, and other mathematical equations...

English, Russian, German, French, Italian, Spanish Articles on mathematical equations Free
MathWorld
MathWorld
MathWorld is an online mathematics reference work, created and largely written by Eric W. Weisstein. It is sponsored by and licensed to Wolfram Research, Inc. and was partially funded by the National Science Foundation's National Science Digital Library grant to the University of Illinois at...

English Articles on a wide variety of math related topics Free
On-Line Encyclopedia of Integer Sequences
On-Line Encyclopedia of Integer Sequences
The On-Line Encyclopedia of Integer Sequences , also cited simply as Sloane's, is an online database of integer sequences, created and maintained by N. J. A. Sloane, a researcher at AT&T Labs...

English Encyclopedia of number sequences (what is next term after 1,2,4,9,20,48,115, ..., say?) Free
PlanetMath
PlanetMath
PlanetMath is a free, collaborative, online mathematics encyclopedia. The emphasis is on rigour, openness, pedagogy, real-time content, interlinked content, and also community of about 24,000 people with various maths interests. Intended to be comprehensive, the project is hosted by the Digital...

English Math related topics and articles Free/GNU
The QED Project English A project to establish a "distributed, computerized repository that rigorously represents all important, established mathematical knowledge." Free

Music

Site Language Description Access
Allmusic English Music-related topics Retail sites
Discogs
Discogs
Discogs, short for discographies, is a website and database of information about audio recordings, including commercial releases, promotional releases, and bootleg or off-label releases. The Discogs servers, currently hosted under the domain name discogs.com, are owned by Zink Media, Inc., and are...

English Database of audio releases Free
Encyclopaedia Metallum
Encyclopaedia Metallum
Encyclopaedia Metallum: The Metal Archives is a website which lists bands from various forms of heavy metal music...

English Archives of heavy metal
Heavy metal music
Heavy metal is a genre of rock music that developed in the late 1960s and early 1970s, largely in the Midlands of the United Kingdom and the United States...

 bands
Free
LyricWiki
LyricWiki
LyricWiki is a lyrical database-oriented website. As of August 2011, it is the fourth largest MediaWiki installation with over 1,600,000 pages. Users on the site can view, edit, and discuss the lyrics of songs, which are also available for purchase from links on the site. The site is powered by...

English Encyclopedic database of song lyrics Free
MOOMA
MOOMA
MOOMA is the leading web site dedicated to Israeli music. It contains information about Israeli artists from all genres, as well as general articles and news about Israeli music. The site editor is Ayelet Yagil....

Hebrew
Hebrew language
Hebrew is a Semitic language of the Afroasiatic language family. Culturally, is it considered by Jews and other religious groups as the language of the Jewish people, though other Jewish languages had originated among diaspora Jews, and the Hebrew language is also used by non-Jewish groups, such...

Articles on Israeli music and musical artists Free
MusicBrainz
MusicBrainz
MusicBrainz is a project that aims to create an open content music database. Similar to the freedb project, it was founded in response to the restrictions placed on the CDDB...

English Database of audio albums Free
MusicMight
MusicMight
MusicMight, formerly Rockdetector is a rock music website which provides artist and product information through a global website and an ongoing book series...

English Bio- and discographies of rock bands Free

Philosophy

Site Language Description Access
Encyclopedia of Marxism multi-lingual Topics related to the study of Marxism
Marxism
Marxism is an economic and sociopolitical worldview and method of socioeconomic inquiry that centers upon a materialist interpretation of history, a dialectical view of social change, and an analysis and critique of the development of capitalism. Marxism was pioneered in the early to mid 19th...

Free
Internet Encyclopedia of Philosophy
Internet Encyclopedia of Philosophy
The Internet Encyclopedia of Philosophy is a free online encyclopedia on philosophical topics and philosophers founded by James Fieser in 1995. The current general editors are James Fieser and Bradley Dowden...

English Philosophy
Philosophy
Philosophy is the study of general and fundamental problems, such as those connected with existence, knowledge, values, reason, mind, and language. Philosophy is distinguished from other ways of addressing such problems by its critical, generally systematic approach and its reliance on rational...

 related articles
Free
Routledge Encyclopedia of Philosophy
Routledge Encyclopedia of Philosophy
The Routledge Encyclopedia of Philosophy is an encyclopedia of philosophy edited by Edward Craig that was first published by Routledge in 1998 . Originally published in both 10 volumes of print and as a CD-ROM, in 2002 it was made available online on a subscription basis...

English Philosophy articles Subscription
Stanford Encyclopedia of Philosophy
Stanford Encyclopedia of Philosophy
The Stanford Encyclopedia of Philosophy is a freely-accessible online encyclopedia of philosophy maintained by Stanford University. Each entry is written and maintained by an expert in the field, including professors from over 65 academic institutions worldwide...

English Philosophy subjects Free

Politics and history

Site Language Description Access
Campaigns Wikia English Political issues and campaigns Free
Congresspedia
Congresspedia
Congresspedia was a wiki that ran from April 2006 to March 2009, designed to hold information on the workings of the U.S. Congress. It was fully contained within SourceWatch, a larger wiki meant to document the people, organizations and issues shaping the public agenda. The Congresspedia portion of...

English Seeks to improve on public information through articles about US Congress specifics Free
Cyclopaedia of Political Science
Cyclopaedia of Political Science
The Cyclopaedia of Political Science, Political Economy, and the Political History of the United States by the Best American and European Writers was an encyclopedia edited by John J. Lalor, first published in New York in 1881 by Maynard, Merrill and Co.....

English Articles pertaining to science
Science
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe...

, economics
Economics
Economics is the social science that analyzes the production, distribution, and consumption of goods and services. The term economics comes from the Ancient Greek from + , hence "rules of the house"...

, and American authors. The 1899 edition is available online
Free
dKosopedia English A political encyclopedia written from a left/progressive/liberal/Democratic point of view Free
Encyclopedia of World Problems and Human Potential
Encyclopedia of World Problems and Human Potential
The Encyclopedia of World Problems and Human Potential is published by the Union of International Associations under the direction of Anthony Judge. It is available as a three-volume book, as a CD-ROM, and online....

English Presents articles on perceived human problems Free
HistoryLink
HistoryLink
HistoryLink is a website that is an encyclopedia of Washington State history. The site has more than 4,500 stories. There are 500 biographies and more than 14,000 images....

English Articles on the history of Washington State Free
Jurispedia
Jurispedia
Jurispedia is a wiki encyclopedia of academic law in many languages, currently available in Arabic, Chinese, English, French, German, Spanish and Dutch. It was started in October of 2004, inspired in part by Wikipedia and the Enciclopedia Libre...

Arabic
Arabic language
Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

, English, Chinese, French, German, Spanish, Dutch
An academic encyclopedia on the concepts of law
Law
Law is a system of rules and guidelines which are enforced through social institutions to govern behavior, wherever possible. It shapes politics, economics and society in numerous ways and serves as a social mediator of relations between people. Contract law regulates everything from buying a bus...

Free

Religion and theology

Site Language Description Access
Boston Collaborative Encyclopedia of Western Theology
Boston Collaborative Encyclopedia of Western Theology
The Boston Collaborative Encyclopedia of Western Theology is a freely accessible encyclopedia composed mainly by students of Boston University's Modern Western Theology seminars. It focuses on Christian theology, mainly from the Western world and is edited by Wesley J...

English Articles on Western Christian theology Free, Public domain
Catholic Encyclopedia
Catholic Encyclopedia
The Catholic Encyclopedia, also referred to as the Old Catholic Encyclopedia and the Original Catholic Encyclopedia, is an English-language encyclopedia published in the United States. The first volume appeared in March 1907 and the last three volumes appeared in 1912, followed by a master index...

English Topics relating to Catholicism
Catholicism
Catholicism is a broad term for the body of the Catholic faith, its theologies and doctrines, its liturgical, ethical, spiritual, and behavioral characteristics, as well as a religious people as a whole....

Free, Public domain
Christian Cyclopedia
Christian Cyclopedia
Christian Cyclopedia is a one-volume compendium of theological data, ranging from ancient figures to contemporary events. It is published by Concordia Publishing House. It should not be confused with The Lutheran Cyclopedia , edited by Henry Eyster Jacobs and Charles A.W...

English A collection of historical and theological information Free
Easton's Bible Dictionary English Articles on Christianity and theology Free, Public Domain
Encyclopaedia Biblica
Encyclopaedia Biblica
Encyclopaedia Biblica: A Critical Dictionary of the Literary, Political and Religion History, the Archeology, Geography and Natural History of the Bible , edited by Thomas Kelly Cheyne and J. Sutherland Black, is a critical encyclopedia of the Bible. In Theology/Biblical studies, it is often...

English Contains articles pertaining to "the Literary, Political and Religious History, the Archaeology, Geography, and Natural History of the Bible" Free
Encyclopedia of Mormonism
Encyclopedia of Mormonism
The Encyclopedia of Mormonism is a semi-official encyclopedia for topics relevant to The Church of Jesus Christ of Latter-day Saints...

English Articles by Mormon academics on history and doctrine of The Church of Jesus Christ of Latter-day Saints (Mormon or LDS Church). Free
Global Anabaptist Mennonite Encyclopedia Online
Global Anabaptist Mennonite Encyclopedia Online
The Global Anabaptist Mennonite Encyclopedia Online is an online encyclopedia of topics relating to Mennonites and Anabaptism. The mission of the project is to provide free, reliable, English-language information on anabaptist-related topics....

English Topics relating to Anabaptism and Mennonite
Mennonite
The Mennonites are a group of Christian Anabaptist denominations named after the Frisian Menno Simons , who, through his writings, articulated and thereby formalized the teachings of earlier Swiss founders...

s
Free
Jewish Encyclopedia
Jewish Encyclopedia
The Jewish Encyclopedia is an encyclopedia originally published in New York between 1901 and 1906 by Funk and Wagnalls. It contained over 15,000 articles in 12 volumes on the history and then-current state of Judaism and the Jews as of 1901...

English Topics relating to Judaism
Judaism
Judaism ) is the "religion, philosophy, and way of life" of the Jewish people...

Free
New Advent
New Advent
New Advent is an online version of the 1913 Catholic Encyclopedia.In 1993, Kevin Knight, then a 26-year-old resident of Denver, Colorado, was inspired, during the visit of Pope John Paul II to that city for World Youth Day, to launch a project to publish the 1913 edition of the encyclopedia on the...

English Articles on Catholicism
Catholicism
Catholicism is a broad term for the body of the Catholic faith, its theologies and doctrines, its liturgical, ethical, spiritual, and behavioral characteristics, as well as a religious people as a whole....

 and apologetics
Apologetics
Apologetics is the discipline of defending a position through the systematic use of reason. Early Christian writers Apologetics (from Greek ἀπολογία, "speaking in defense") is the discipline of defending a position (often religious) through the systematic use of reason. Early Christian writers...

Free

Science

Site Language Description Access
APpedia
APpedia
APpedia is a animal protection project of Chinese Animal Protection Network. The main objective of the project was to establish an online Chinese encyclopedia of animal protection. The project currently has more than 90 academic researchers and affiliated organizations around world.APpedia is...

Chinese Contains articles on the subject of general animal protection Free
Encyclopedia Astronautica
Encyclopedia Astronautica
The Encyclopedia Astronautica is a reference web site on space travel. A comprehensive catalog of vehicles, technology, astronauts, and flights, it includes information from most countries that have had an active rocket research program, from Robert Goddard to the NASA Space shuttle to the Soviet...

English Contains articles on the subject of space exploration
Space exploration
Space exploration is the use of space technology to explore outer space. Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft....

 and astronomy
Astronomy
Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

Free
Encyclopedia of Earth
Encyclopedia of Earth
The Encyclopedia of Earth is an electronic reference about the Earth, its natural environments, and their interaction with society. The Encyclopedia is described as a free, fully searchable collection of articles written by scholars, professionals, educators, and other approved experts, who...

English Articles on the Earth and its ecosystems Free
Javapedia
Javapedia
The Javapedia project was launched in June 2003 during the JavaOne developer conference. It is part of . The website is promoted by Sun Microsystems as the central meeting place for the Java community....

English Coverage of all topics related to the Java platform Free
ScienceWorld
ScienceWorld
ScienceWorld, also known as Eric Weisstein's World of Science, is a Web site that opened to the general public in January 2002. As of November 2007, ScienceWorld includes more than 4,000 entries in fields of science including astronomy, chemistry, physics, as well as biographies of many scientists...

English Covers astronomy, scientific biography, chemistry, and physics. Like MathWorld
MathWorld
MathWorld is an online mathematics reference work, created and largely written by Eric W. Weisstein. It is sponsored by and licensed to Wolfram Research, Inc. and was partially funded by the National Science Foundation's National Science Digital Library grant to the University of Illinois at...

, it is edited by Eric Weisstein.
Free

Biology-Life science

Site Language Description Access
Animal Diversity Web
Animal Diversity Web
Animal Diversity Web is an online database that collects the natural history, classification, species characteristics, conservation biology, and distribution information of thousands of species of animals...

English Student wiki-type database at the University of Michigan
University of Michigan
The University of Michigan is a public research university located in Ann Arbor, Michigan in the United States. It is the state's oldest university and the flagship campus of the University of Michigan...

 of animal natural history, distribution, classification, and conservation biology.
Free
ARKive
ARKive
ARKive is a global initiative with the mission of "promoting the conservation of the world's threatened species, through the power of wildlife imagery", which it does by locating and gathering films, photographs and audio recordings of the world's species into a centralised digital archive. Its...

English Visual and audio recordings of the world's species Free
Encyclopedia of Life
Encyclopedia of Life
The Encyclopedia of Life is a free, online collaborative encyclopedia intended to document all of the 1.9 million living species known to science. It is compiled from existing databases and from contributions by experts and non-experts throughout the world...

English, French Seeks to categorize all 1.8 million known species on the planet Free
Encyclopedia of Life Sciences
Encyclopedia of Life Sciences
The Encyclopedia of Life Sciences is an encyclopedia that spans the entire spectrum of life sciences and is published by Wiley-Blackwell....

English Biology
Biology
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines...

 related articles
Subscription
Encyclopedia of Life Support Systems
Encyclopedia of Life Support Systems
The Encyclopedia of Life Support Systems is an interdisciplinary encyclopedia, sponsored by UNESCO and free for Least Developed Countries...

English Articles about the natural
Natural science
The natural sciences are branches of science that seek to elucidate the rules that govern the natural world by using empirical and scientific methods...

 and social sciences
Social sciences
Social science is the field of study concerned with society. "Social science" is commonly used as an umbrella term to refer to a plurality of fields outside of the natural sciences usually exclusive of the administrative or managerial sciences...

Subscription
Erowid
Erowid
Erowid, also called The Vaults of Erowid, is an online library of information about psychoactive plants and chemicals and other topics on altered states of consciousness such as meditation and lucid dreaming. It provides information about legal and illegal substances, including their desired and...

English Information about psychoactive substances Free
FishBase
FishBase
FishBase is a comprehensive database of information about fish species . It is the largest and most extensively accessed online database on adult finfish on the web...

English, Spanish, Portuguese
Portuguese language
Portuguese is a Romance language that arose in the medieval Kingdom of Galicia, nowadays Galicia and Northern Portugal. The southern part of the Kingdom of Galicia became independent as the County of Portugal in 1095...

, French, German, Italian
Italian language
Italian is a Romance language spoken mainly in Europe: Italy, Switzerland, San Marino, Vatican City, by minorities in Malta, Monaco, Croatia, Slovenia, France, Libya, Eritrea, and Somalia, and by immigrant communities in the Americas and Australia...

, Dutch, Chinese (Simplified Han)
Simplified Chinese character
Simplified Chinese characters are standardized Chinese characters prescribed in the Xiandai Hanyu Tongyong Zibiao for use in Mainland China. Along with traditional Chinese characters, it is one of many standard character sets of the contemporary Chinese written language...

, Chinese (Traditional Han)
Traditional Chinese character
Traditional Chinese characters refers to Chinese characters in any character set which does not contain newly created characters or character substitutions performed after 1946. It most commonly refers to characters in the standardized character sets of Taiwan, of Hong Kong, or in the Kangxi...

, Bahasa Malay
Malay language
Malay is a major language of the Austronesian family. It is the official language of Malaysia , Indonesia , Brunei and Singapore...

, Indonesian
Indonesian language
Indonesian is the official language of Indonesia. Indonesian is a normative form of the Riau Islands dialect of Malay, an Austronesian language which has been used as a lingua franca in the Indonesian archipelago for centuries....

, Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

, Swedish
Swedish language
Swedish is a North Germanic language, spoken by approximately 10 million people, predominantly in Sweden and parts of Finland, especially along its coast and on the Åland islands. It is largely mutually intelligible with Norwegian and Danish...

, Russian
Russian language
Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...

, Persian
Persian language
Persian is an Iranian language within the Indo-Iranian branch of the Indo-European languages. It is primarily spoken in Iran, Afghanistan, Tajikistan and countries which historically came under Persian influence...

, Vietnamese
Vietnamese language
Vietnamese is the national and official language of Vietnam. It is the mother tongue of 86% of Vietnam's population, and of about three million overseas Vietnamese. It is also spoken as a second language by many ethnic minorities of Vietnam...

, Thai
Thai language
Thai , also known as Central Thai and Siamese, is the national and official language of Thailand and the native language of the Thai people, Thailand's dominant ethnic group. Thai is a member of the Tai group of the Tai–Kadai language family. Historical linguists have been unable to definitively...

, Lao
Lao language
Lao or Laotian is a tonal language of the Tai–Kadai language family. It is the official language of Laos, and also spoken in the northeast of Thailand, where it is usually referred to as the Isan language. Being the primary language of the Lao people, Lao is also an important second language for...

, Hindi
Hindi
Standard Hindi, or more precisely Modern Standard Hindi, also known as Manak Hindi , High Hindi, Nagari Hindi, and Literary Hindi, is a standardized and sanskritized register of the Hindustani language derived from the Khariboli dialect of Delhi...

, Bangla
Articles on fish species Free
Flora Europaea
Flora Europaea
The Flora Europaea is a 5-volume encyclopedia of plants, published between 1964 and 1993 by Cambridge University Press. The aim was to describe all the national Floras of Europe in a single, authoritative publication that helped readers identify any wild or widely cultivated plant in Europe to the...

English Covers different plant species Free
Macroscopic Observatory
Macroscopic Observatory
The Macroscopic Observatory is an online reference work to create a detailed world map of flora and fauna and track changes in biodiversity. The database will be populated with data about local species gathered by members of the public.-See also:...

English Covers Flora
Flora
Flora is the plant life occurring in a particular region or time, generally the naturally occurring or indigenous—native plant life. The corresponding term for animals is fauna.-Etymology:...

 and Fauna
Fauna
Fauna or faunæ is all of the animal life of any particular region or time. The corresponding term for plants is flora.Zoologists and paleontologists use fauna to refer to a typical collection of animals found in a specific time or place, e.g. the "Sonoran Desert fauna" or the "Burgess shale fauna"...

Free
Palaeos
Palaeos
Palaeos.com is a web site on biology, paleontology, cladistics and geology and which covers the history of Earth. The site is well respected and has been used as a reference by professional paleontologists such as Michael J. Benton, the professor of vertebrate palaeontology in the Department of...

English Covers palaeontology Free
The Plant List
The Plant List
The Plant List is a list of botanical names of species of plants, available on the world wide web. It was created by the Royal Botanic Gardens, Kew and the Missouri Botanical Garden...

English Covers Flora
Flora
Flora is the plant life occurring in a particular region or time, generally the naturally occurring or indigenous—native plant life. The corresponding term for animals is fauna.-Etymology:...

Free
Wikispecies
Wikispecies
Wikispecies is a wiki-based online project supported by the Wikimedia Foundation. Its aim is to create a comprehensive free content catalogue of all species and is directed at scientists, rather than at the general public...

English Seeks to create a catalogue of all living things Free

Medicine and surgery

At least 70 online medical wiki encyclopedias has been created. Some include:
Site Language Description Access
Ganfyd
Ganfyd
Ganfyd is a medical wiki community and online medical wiki encyclopedia, created in November 2005 by a group of doctors working in the United Kingdom. The site has been the subject of academic exposition into emerging methods of disseminating medical information and more specifically, the...

English Medical content Free
Medcyclopaedia
Encyclopaedia of Medical Imaging
The Encyclopaedia of Medical Imaging is an online medical wiki encyclopedia of medical imaging used in radiology and radiography. Its online version is called Medcyclopaedia....

English Articles on medical imaging
Medical imaging
Medical imaging is the technique and process used to create images of the human body for clinical purposes or medical science...

 used in radiology
Radiology
Radiology is a medical specialty that employs the use of imaging to both diagnose and treat disease visualized within the human body. Radiologists use an array of imaging technologies to diagnose or treat diseases...

 and radiography
Radiography
Radiography is the use of X-rays to view a non-uniformly composed material such as the human body. By using the physical properties of the ray an image can be developed which displays areas of different density and composition....

Free
Medpedia
Medpedia
Medpedia is a collaborative project launched on 17 February 2009. Its aim is to create an open access online medical wiki encyclopedia in association with Harvard Medical School, Stanford School of Medicine, Berkeley School of Public Health, University of Michigan Medical School, the U.K. National...

English Medical content Free
Radiopaedia
Radiopaedia
Radiopaedia is a wiki-based international collaborative radiology educational web resource with reference articles, radiology images, and patient cases. It also contains a radiology encyclopedia...

English Articles on medical imaging
Medical imaging
Medical imaging is the technique and process used to create images of the human body for clinical purposes or medical science...

 used in radiology
Radiology
Radiology is a medical specialty that employs the use of imaging to both diagnose and treat disease visualized within the human body. Radiologists use an array of imaging technologies to diagnose or treat diseases...

 and radiography
Radiography
Radiography is the use of X-rays to view a non-uniformly composed material such as the human body. By using the physical properties of the ray an image can be developed which displays areas of different density and composition....

Free
WikiSurgery English Surgical content Free

See also


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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