I’ve just stumbled onto the antithesis of Wikipedia; Uncyclopedia. It’s reason d’etre is:

...to provide the world's misinformation in the least redeeming and most searingly sarcastic and humourous way possible.

It’s utterly hilarious, highlights I’ve read so far include: Aesops Fables, Vietcong, wikipedia and wikipedia land

There also seems to be some kind of deep fascination with Oprah Winfrey.