Wikimedia Foundation

The Wikimedia Foundation, Inc. is a non-profit charitable organization based in St. Petersburg, Florida, USA, and organized under the laws of the state of Florida. It operates several online collaborative projects including Wikipedia, Wiktionary, Wikiquote, Wikibooks (including Wikijunior), Wikisource, Wikimedia Commons, Wikispecies, Wikinews, Wikiversity, and Meta-Wiki.

Its existence was officially announced by Wikipedia head Jimmy Wales, who was hitherto running Wikipedia within his company Bomis, on June 20, 2003. Its approval by the U.S. Internal Revenue Service, by letter in April 2005, as an educational foundation in the category "Adult, Continuing Education" means all contributions to the Wikimedia Foundation are tax deductible for U.S. federal income tax purposes.