"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 more than 2,000,000 individual articles on everything from Aa! (a Japanese pop group) to Zzyzx, California, written by an army of volunteer contributors, Wikipedia is the #8 site on the World Wide Web. Created (and corrected) by anyone with access to a computer,...