For those who don't know, Wikipedia is a community driven, open source online encylopedia. An important feature of Wikipedia is the "free linking", that is links to relevant pages within the site, which consequently allows one to get lost for hours in a wealth of information. Consider it a Million Degrees of Seperation.
Every time I visit I'm find another interesting thing.
Wikipedia is useless as an academic source. It's information written by amateurs, not experts. All my uni professors say to stay away from it for papers if you don't want to fail.