In 2008 the Wikipedia attracted at least 684 million visitors annually.
"There are more than 75,000 active contributors working on more than 10,000,000 articles in more than 250 languages. As of today, there are 2,603,373 articles in English; every day hundreds of thousands of visitors from around the world make tens of thousands of edits and create thousands of new articles to enhance the knowledge held by the Wikipedia encyclopedia."