Wikipedia - The Free Encyclopedia

Wikipedia is a web-based, free, collaborative, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation.

There are 19 million articles (over 3.7 million in English) that have been written collaboratively by volunteers around the world.

Anyone with access to the site can edit almost all of the articles.

The editions of Wikipedia are in 282 languages (July, 2011).

It has become the largest and most popular general reference work on the Internet and having 365 million readers.