Wikipedia

Wikipedia, free Internet-based encyclopaedia, started in 2001, that operates under an open-source management style. It is overseen by the nonprofit Wikimedia Foundation. Wikipedia uses a collaborative software known as wiki that facilitates the creation and development of articles. Although some highly publicized problems have called attention to Wikipedia’s editorial process, they have done little to dampen public use of the resource, which is one of the most-visited sites on the Internet.