Wikia – Social Search Engine
Wikia is supporting the creation and development of over 3000 wiki communities in more than 70 languages. Part of the free culture movement, Wikia content is released under a free content license and operates on the Open Source MediaWiki software. Find out why you should use Wikia and start a new wiki or find an existing one by browsing the Wikia hubs. Wikia sites are supported by advertising revenue and investments. All Wikia sites are free to read and open to edit. This has been added to Social Informatics Subject Tracer™ Information Blog.