You're familiar with Wikipedia, of course, and you may have searched for a quotation in Wiki-quote, checked out the free textbook collection at Wikibooks, or looked up a definition or a synonym in the Wiktionary. But did you know those are just a few of the user-edited wikis underneath the Wikimedia Foundation umbrella? Formed as a nonprofit in 2003 to give Wikipedia a home, the foundation now hosts more than a dozen wikis and related websites. Calling them "free knowledge projects," the organization develops the software and maintains the servers that keep these projects running. The following is an overview of some of the foundation's other wikis.
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