Wikia (formerly Wikicities) is a free web hosting service for wikis. The site is free of charge, deriving its income from advertising, and publishes all user-provided text under copyleft licenses. Wikia hosts several hundred thousand wikis using the open-source wiki software, MediaWiki. Its operator, Wikia, Inc., is a for-profit Delaware company founded in late 2004 by Jimmy Wales and Angela Beesley—respectively Chairman Emeritus and Advisory Board member of the Wikimedia Foundation—and headed by Craig Palmer as CEO.
On February 8, 2012, founder Angela announced she was leaving Wikia to launch a startup called ChalkDrop.com.