Wikipedia!

Wikipedia is a proyect of the Wikimedia Foundation. It's a free, web-based, collaborative, multilingual and non-profit encyclopedia. It was launched on 2001 by Larry Sanger and Jimmy Wales, with an original idea where anyone could edit the webpage and help build up any article. It quickly began to expand and gain more popularity as people noticed how practical and useful it is. Its name means "Fast encyclopedia". Wikipedia is the most used reference work in the Internet, available in 240 languages, and also a great example of an expanding Web 2.0 website. Wikipedia is oftern characterized by the Editing Model, their neutrality, their cites, their high quality and coverage of topics; but also criticized for its non reliability.