Blogs

• Apache Roller
  Apache Roller
  Apache Roller is a Java-based Open Source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small". Roller was originally written by Dave Johnson in 2002 for a magazine article on open source development tools, but became popular at FreeRoller.net and...
  
  
• Blogger
  Blogger (service)
  Blogger is a blog-publishing service that allows private or multi-user blogs with time-stamped entries. It was created by Pyra Labs, which was bought by Google in 2003. Generally, the blogs are hosted by Google at a subdomain of blogspot.com. Up until May 1, 2010 Blogger allowed users to publish...
  
  
• BlogSpirit
• IBM Lotus Connections
  IBM Lotus Connections
  IBM Connections is a proprietary Web 2.0 social software application developed by the Lotus Software division of IBM. The goal of Lotus Connections is to empower companies to be more innovative and help them execute more quickly by using dynamic networks of co-workers, partners and customers...
  
  
• Posterous
  Posterous
  Posterous is a simple blogging platform started in May 2008, funded by Y Combinator. It is based in San Francisco.Updating to Posterous is similar to other blogging platforms. Posting can be done by logging in to the website's rich text editor, but it is particularly designed for mobile blogging...
  
  
• Telligent Community
• Tumblr
  Tumblr
  Tumblr is a website and microblogging platform that allows users to post text, images, videos, links, quotes and audio to their tumblelog, a short-form blog. Users can follow other users, or choose to make their tumblelog private. The service emphasizes ease of use. The site ranks as the 10th...
  
  
• Typepad
  TypePad
  TypePad is a blogging service from company Say Media . Originally launched in October 2003, TypePad is based on Six Apart's Movable Type platform, and shares technology with Movable Type such as templates and APIs, but is marketed to non-technical users and includes additional features like...
  
  
• Wordpress
  WordPress
  WordPress is a free and open source blogging tool and publishing platform powered by PHP and MySQL. It is often customized into a content management system . It has many features including a plug-in architecture and a template system. WordPress is used by over 14.7% of Alexa Internet's "top 1...
  
  
• Xanga
  Xanga
  Xanga is a website that hosts weblogs, photoblogs, and social networking profiles. It is operated by Xanga.com, Inc., based in New York City.-Origins:...
  
  

Instant messaging

• Comparison of instant messaging clients
  Comparison of instant messaging clients
  The following tables compare general and technical information for a number of instant messaging clients. Please see the individual products' articles for further information. This article is not all-inclusive or necessarily up-to-date...
  
  
• Comparison of XMPP server software
  Comparison of XMPP server software
  - Comparison by RFC implementation status :- Comparison by XEP implementation status :...
  
  
• IBM Lotus Sametime
  IBM Lotus Sametime
  IBM Sametime is a client–server application and middleware platform that provides real-time, unified communications and collaboration for enterprises. Those capabilities include presence information, enterprise instant messaging, web conferencing, community collaboration, and telephony capabilities...
  
  
• Live Communications Server 2003
• Live Communications Server 2005
  Live Communications Server 2005
  Live Communications Server 2005 , codenamed Vienna, is the second version of a SIP based instant messaging and presence server after Live Communications Server 2003. LCS 2005 was first released in 2005, and was updated with new features with Service Pack 1 in 2006...
  
  
• Microsoft Lync Server

Internet forums

• Comparison of Internet forum software
  Comparison of Internet forum software
  This article outlines the general features commonly found in various Internet forum software packages.-Subarticles:This article is a comparison of some of the major features of the various Internet forum software packages currently available. This page highlights major features that the manager of...
  
  
• Comparison of Internet forum software (ASP)
  Comparison of Internet forum software (ASP)
  This is a comparison of the features of various Internet forum packages written in ASP, ASP.NET, and variations thereof.-General information:Basic general information about the forums: creator/company, license/price, etc.asp.net fourms-Features:...
  
  
• Comparison of Internet forum software (PHP)
  Comparison of Internet forum software (PHP)
  This is a comparison of the features of various Internet forum packages written in PHP.- General information :Basic general information about the forums: creator/company, license/price etc.- Features :- Data storage :...
  
  
• Comparison of internet forum software (other)
  Comparison of internet forum software (other)
  -----Comparison of Internet forum software...
  
  

Media sharing

• blip.tv
  Blip.tv
  The website Blip.tv is a platform for web series. The company offers a for the "best in original web series" and also offers a dashboard for producers of original web series to distribute and monetize their productions....
  
  
• Dailymotion
  Dailymotion
  Dailymotion is a video sharing service website, headquartered in the 18th arrondissement, Paris, France. According to Comscore, Dailymotion is the second largest video site in the world after YouTube....
  
  
• Flickr
  Flickr
  Flickr is an image hosting and video hosting website, web services suite, and online community that was created by Ludicorp in 2004 and acquired by Yahoo! in 2005. In addition to being a popular website for users to share and embed personal photographs, the service is widely used by bloggers to...
  
  
• Ipernity
  Ipernity
  ipernity is a Web site offering free services of multimedia sharing and social networking. It also has services for which you must pay, i.e., their service Pro....
  
  
• Metacafe
  Metacafe
  Metacafe is a web site that specializes in short-form video entertainment in the categories of movies, video games, sports, music and TV.The company is headquartered in San Francisco, California, with offices in New York, Los Angeles, London and Tel Aviv...
  
  
• OneWorldTV
  OneWorldTV
  OneWorldTV is a nonprofit internet video sharing and social networking site aiming to Climate Change, Human Rights, Social Justice Sustainable Development etc. OneWorldTV is part of OneWorld.net an international network of centres....
  
  
• Putfile
  Putfile
  Putfile was a free file-hosting website started in January 2004 that provided video and photo hosting services. It was originally owned by Putfile Limited in Godalming, Surrey, Great Britain, and on February 6, 2007, it was purchased by ZVUE Corporation, an internet media company.-Uploading:Putfile...
  
  
• SmugMug
  Smugmug
  SmugMug is a paid digital photo sharing website.- History :Chris MacAskill and Don MacAskill started the original company to build a new video game-oriented web service in February 2002. By August 2002, though, their focus shifted...
  
  
• TalentTrove
  TalentTrove
  Lafango is a social media website that allows users to create profiles, upload and share unlimited media , communicate in user created communities, compete in contests, create free electronic press kits, and blog...
  
  
• Tangle
• Vimeo
  Vimeo
  Vimeo is a video-sharing website on which users can upload, share, and view videos. It was founded by Zach Klein and Jake Lodwick in November 2004...
  
  
• YouTube
  YouTube
  YouTube is a video-sharing website, created by three former PayPal employees in February 2005, on which users can upload, view and share videos....
  
  
• Zooomr
  Zooomr
  - History :Zooomr was created in 2005 by Kristopher Tate and Michael Van Veen of BlueBridge Technologies Group. On June 19, 2006, Thomas Hawk, a well-known photographer and blogger from San Francisco, was recruited by Zooomr as its so called "Chief Evangelist." On July 17, 2006, Zooomr released...
  
  
• IBM Lotus Connections
  IBM Lotus Connections
  IBM Connections is a proprietary Web 2.0 social software application developed by the Lotus Software division of IBM. The goal of Lotus Connections is to empower companies to be more innovative and help them execute more quickly by using dynamic networks of co-workers, partners and customers...
  
  

Web widgets

• AddThis
  AddThis
  AddThis is a widely used social bookmarking service founded by Dom Vonarburg and owned by Clearspring that can be integrated into a website with the use of a web widget. Once added, visitors to the website can bookmark an item using a variety of services, such as Facebook, MySpace, Google...
  
  
• ShareThis
  ShareThis
  The ShareThis button is an all-in-one widget that lets people share any content on the Web with friends via e-mail, AIM, or text message. The widget can also keep an account of personal contacts so that users can send an e-mail, IM, or text message with favorite links to friends...
  
  
• Social bookmark link generator
  Social bookmark link generator
  A Social bookmark link generator is a third party software which generates a code that can be added to Web pages and/or Blogs to facilitate bookmarking the web content on bookmarking websites....
  
  

Enterprise software

• IBM Lotus Connections
  IBM Lotus Connections
  IBM Connections is a proprietary Web 2.0 social software application developed by the Lotus Software division of IBM. The goal of Lotus Connections is to empower companies to be more innovative and help them execute more quickly by using dynamic networks of co-workers, partners and customers...
  
  
• Jumper 2.0 Enterprise
  Jumper 2.0
  Jumper 2.0, is an open source web application script for collaborative search and knowledge management powered by a shared enterprise bookmarking engine that is a fork of KnowledgebasePublisher[]. It was publicly announced on 29 September 2008,...
  
  
• KineticGlue
  KineticGlue
  KineticGlue is an enterprise social software. It is a private, social network for employees of an organization to collaborate on their day-to-day work...
  
  

Social cataloging

• aNobii
  ANobii
  Anobii is a social networking site aimed at readers. It was acquired by a new venture backed by HMV Group, Harper Collins, Penguin and Random House in 2010 from a private company owned by Greg Sung, based in Hong Kong....
  
  
• Goodreads
  Goodreads
  Goodreads is a privately run "social cataloging" website started in December 2006 by Otis Chandler, a software engineer and entrepreneur. The website permits individuals to sign up and register books to create their library catalogs and reading lists. It also allows users to create their own...
  
  
• Knowledge Plaza
  Knowledge Plaza
  Knowledge Plaza, also referred to as KP, is an Enterprise 2.0 and knowledge management tool which provides a balance between social bookmarking, document management, wikis and an internal social network...
  
  
• Librarything
  LibraryThing
  LibraryThing is a social cataloging web application for storing and sharing book catalogs and various types of book metadata. It is used by individuals, authors, libraries and publishers....
  
  
• Shelfari
  Shelfari
  Shelfari is a social cataloging website for books. Shelfari users build virtual bookshelves of the titles they own or have read, and can rate, review, tag, and discuss their books. Users can also create groups that other members may join, create discussions, and talk about books, or other topics...
  
  
• KartMe
  KartMe
  KartMe is a social networking website and mobile application that specializes in social cataloging. Members organize and share favorite links, products and places in lists called "Karts". The mobile application was an Apple "Staff Pick"...
  
  

Social citations

• BibSonomy
  BibSonomy
  BibSonomy is a social bookmarking and publication-sharing system. It aims to integrate the features of bookmarking systems as well as team-oriented publication management...
  
  
• bibster
  Bibster
  Bibster is a Java-based system which assists researchers in managing, searching, and sharing bibliographic metadata in a peer-to-peer network....
  
  
• CiteULike
  CiteULike
  CiteULike is based on the principle of social bookmarking and is aimed to promote and to develop the sharing of scientific references amongst researchers. In the same way that it is possible to catalog web pages or photographs , scientists can share information on academic papers with specific...
  
  
• Connotea
  Connotea
  Connotea is a free online reference management service for scientists, researchers, and clinicians, created in December 2004 by Nature Publishing Group...
  
  
• Jumper 2.0 Enterprise
  Jumper 2.0
  Jumper 2.0, is an open source web application script for collaborative search and knowledge management powered by a shared enterprise bookmarking engine that is a fork of KnowledgebasePublisher[]. It was publicly announced on 29 September 2008,...
  
  
• Knowledge Plaza
  Knowledge Plaza
  Knowledge Plaza, also referred to as KP, is an Enterprise 2.0 and knowledge management tool which provides a balance between social bookmarking, document management, wikis and an internal social network...
  
  
• Mendeley
  Mendeley
  Mendeley is a desktop and web program for managing and sharing research papers, discovering research data and collaborating online. It combines Mendeley Desktop, a PDF and reference management application with Mendeley Web, an online social network for researchers. Mendeley requires the user to...
  
  
• refbase
  Refbase
  refbase is web-based institutional repository and reference management software which is often used for self-archiving. refbase is licensed under the GPL and written in PHP and uses a MySQL backend....
  
  
• Zotero
  Zotero
  Zotero is free, open source reference management software to manage bibliographic data and related research materials . Notable features include web browser integration, online syncing, generation of in-text citations, footnotes and bibliographies, as well as integration with the word processors...
  
  

Social evolutionary computation

• Knowledge iN
• Yahoo Answers

Virtual worlds

• Active Worlds
  Active Worlds
  Active Worlds is a 3D virtual reality platform. The Active Worlds client runs on Windows. Users assign themselves a name, log into the Active Worlds universe, and explore 3D virtual worlds and environments that other users have built. Users can chat with one another or build structures and areas...
  
  
• Galaxiki
  Galaxiki
  Galaxiki is a web-based, free content virtual community web 2.0 project. It consists of a virtual galaxy with over a million stars and solar systems that can be explored using a 2-dimensional map...
  
  
• Google Lively
  Google Lively
  Google Lively was a web-based virtual environment produced by Google Inc.. It was discontinued on December 31, 2008.Lively was only supported on Internet Explorer or Mozilla Firefox, using Windows XP or Windows Vista. It required a special download as well as Flash. The program was designed to be...
  
   (now defunct)
• Kaneva
  Kaneva
  Kaneva, LLC is a privately owned Atlanta-based company founded in 2004 by Christopher Klaus and Greg Frame. Kaneva is a 3D Virtual World that supports 2D web browsing, social networking and shared media....
  
  
• Moove
  Moove
  Moove is a privately held company based in Köln, Germany, with a branch in Los Angeles. The company is owned by Lothar Bongartz and Dr. A. Burak Kozan, a pair of professional software developers...
  
  
• Second Life
  Second Life
  Second Life is an online virtual world developed by Linden Lab. It was launched on June 23, 2003. A number of free client programs, or Viewers, enable Second Life users, called Residents, to interact with each other through avatars...
  
  
• There
• Meez
  Meez
  Meez is a social network service based in San Francisco, CA....