The Wikimedia Foundation is a non-profit charitable corporation that aims to collect and develop educational content and deliver it to the people for free. The Wikimedia Foundation was officially announced by Jimmy Wales on Jun 20, 2003.
Wikimedia Foundation supports a number of projects, most notable the free online encyclopedia Wikipedia, and the wiki software it runs on; MediaWiki. Other projects include Wiktionary, Wikibooks and Wikinews.
Founder Jimmy Wales is still on the board of the Wikimedia Foundation. Wikipedia co-founder Larry Sanger has resigned. Funding for the Wikimedia Foundation is mainly collected from public donations, however they are looking into possible revenues that would further secure the work of Wikimedia.