Wikipedia

A Brief History of Wikipedia
"When Nupedia was created in 2000, the plan was for it to feature expert-written, peer-reviewed content. But it suffered from a major problem: a lack of speed. In its first six months, only two articles made it through the process. To spur better production, Sanger suggested creating a counterpart that anyone could contribute to without editorial review. Wikipedia.com went live on Jan. 15, 2001, and the new model quickly eclipsed its older sibling. By the end of the first year, Wikipedia contained more than 20,000 articles in 18 languages. Since then, the site has grown rapidly, swelling to 250,000 articles by 2004 and a million by 2006."