"Imagine a world in which every single person on the planet is given free access to the sum of all human knowledge. That's what we're doing." --Jimmy Wales With

Want to be part of the largest group-writing project in human history? Learn how to contribute to Wikipedia, the user-generated online reference for the 21st ce

Wikipedia's first twenty years: how what began as an experiment in collaboration became the world's most popular reference work. We have been looking things up

The final book of the Bible, Revelation prophesies the ultimate judgement of mankind in a series of allegorical visions, grisly images and numerological predict

Provides information on using and contributing to Wikipedia, covering such topics as evaluating the reliability of articles, editing existing articles, adding n