Zemanta is a content suggestion engine for bloggers and other content creators.

Features

Zemanta analyzes user-generated content (e.g. a blog post) using natural language processing

Natural language processing

Natural language processing is a field of computer science and linguistics concerned with the interactions between computers and human languages; it began as a branch of artificial intelligence....

 and semantic search

Semantic search

Semantic search seeks to improve search accuracy by understanding searcher intent and the contextual meaning of terms as they appear in the searchable dataspace, whether on the Web or within a closed system, to generate more relevant results. Author Seth Grimes lists "11 approaches that join...

 technology to suggest pictures, tags and links to related articles.

Zemanta suggests content from 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,...

, 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....

, IMDB, Amazon.com

Amazon.com

Amazon.com, Inc. is a multinational electronic commerce company headquartered in Seattle, Washington, United States. It is the world's largest online retailer. Amazon has separate websites for the following countries: United States, Canada, United Kingdom, Germany, France, Italy, Spain, Japan, and...

, Crunchbase, 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...

, ITIS

Itis

Itis may refer to* Integrated Taxonomic Information System, a partnership designed to provide consistent and reliable information on the taxonomy of biological species...

, 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...

, Mybloglog

MyBlogLog

MyBlogLog was a social network for the blogger community that was based in part on interactions facilitated by a popular web widget that many members install on their blog. Bloggers signed up for free accounts on MyBlogLog and can initiate a blog community for one or more blogs they authored...

, Myspace

Myspace

Myspace is a social networking service owned by Specific Media LLC and pop star Justin Timberlake. Myspace launched in August 2003 and is headquartered in Beverly Hills, California. In August 2011, Myspace had 33.1 million unique U.S. visitors....

, NCBI

National Center for Biotechnology Information

The National Center for Biotechnology Information is part of the United States National Library of Medicine , a branch of the National Institutes of Health. The NCBI is located in Bethesda, Maryland and was founded in 1988 through legislation sponsored by Senator Claude Pepper...

, Rottentomatoes, Twitter

Twitter

Twitter is an online social networking and microblogging service that enables its users to send and read text-based posts of up to 140 characters, informally known as "tweets".Twitter was created in March 2006 by Jack Dorsey and launched that July...

, Facebook

Facebook

Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook, Inc. , Facebook has more than 800 million active users. Users must register before using the site, after which they may create a personal profile, add other users as...

, Snooth

Snooth

Snooth is a social networking website based in New York City, USA. It was founded in November 2006 by Philip J. K. James, a graduate of Oxford University and Columbia Business School. The company raised $300,000 in seed financing in December 2006...

 and Wikinvest

Wikinvest

Wikinvest is an investment portal that uses the wiki format. It was founded in 2006 by Michael Sha, former Amazon.com employee and has been open to the public since June 2007. The website was a winner in the 2008 SXSW Interactive Web Awards....

, as well as the blogs of other Zemanta users.

Zemanta's understanding of the content (e.g. whether "Apple" refers to a fruit or a company) can be embedded into the content using Common Tag for semantic tagging.

Originally released for use by bloggers, Zemanta is available as a Firefox and Internet Explorer

Internet Explorer

Windows Internet Explorer is a series of graphical web browsers developed by Microsoft and included as part of the Microsoft Windows line of operating systems, starting in 1995. It was first released as part of the add-on package Plus! for Windows 95 that year...

 extension and plugins for 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...

, 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...

, 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...

, Ning, MySpace

MySpace

Myspace is a social networking service owned by Specific Media LLC and pop star Justin Timberlake. Myspace launched in August 2003 and is headquartered in Beverly Hills, California. In August 2011, Myspace had 33.1 million unique U.S. visitors....

, LiveJournal

LiveJournal

LiveJournal is a virtual community where Internet users can keep a blog, journal or diary. LiveJournal is also the name of the free and open source server software that was designed to run the LiveJournal virtual community....

, MovableType, 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...

, Drupal

Drupal

Drupal is a free and open-source content management system and content management framework written in PHP and distributed under the GNU General Public License. It is used as a back-end system for at least 1.5% of all websites worldwide ranging from personal blogs to corporate, political, and...

 and Joomla. It is now also available for use with web-based email systems like Gmail

Gmail

Gmail is a free, advertising-supported email service provided by Google. Users may access Gmail as secure webmail, as well via POP3 or IMAP protocols. Gmail was launched as an invitation-only beta release on April 1, 2004 and it became available to the general public on February 7, 2007, though...

 and Yahoo mail, and an Microsoft Outlook

Microsoft Outlook

Microsoft Outlook is a personal information manager from Microsoft, available both as a separate application as well as a part of the Microsoft Office suite...

 add-in is in development.

Zemanta is server based software, so the server does all the hard work and the plugins simply communicate with the server to retrieve suggestions.

Other companies have used Zemanta's API to add content suggestion to their products, for example hover.in, Triond, RetailFans, Bukisa and Faviki.

Zemanta used to be based in part on TextGarden content analysis

Content analysis

Content analysis or textual analysis is a methodology in the social sciences for studying the content of communication. Earl Babbie defines it as "the study of recorded human communications, such as books, websites, paintings and laws."According to Dr...

 software from Slovenia's Jožef Stefan Institute

Jožef Stefan Institute

The Jožef Stefan Institute , is the largest research institute in Slovenia. The main research areas are physics, chemistry, molecular biology, biotechnology, information technologies, reactor physics, energy and environment...

national research institute.