Wikipedia is a project to build free encyclopedias in all languages of the world. Virtually anyone with Internet access is free to contribute, by contributing neutral, cited information.
Wikipedia started in January 2001, and currently offers more than ten million articles in 273 languages. The largest Wikipedia is in English, with more than three million articles; it is followed by the German, French, Italian, Polish, Spanish, Japanese, Russian, Dutch, and Portuguese editions, each of which contain more than half a million articles. Over twenty-five other language editions contain 100,000+ articles, and more than 150 other languages contain 1,000+ articles.
Wikipedia is also known for its community. In 2004 Wikipedia won the Webby Award for "Community" and the Prix Ars Electronica's Golden Nica for "Digital Communities". Since the start of the project, over 650,000 registered users have made at least ten edits. The total number of accounts created on the English Wikipedia alone exceeds 10 million. However, most edits on that language edition come from a few thousand of the most dedicated users.