A while back, other skeptical bloggers covered what's been called "SCAMpedia," a wiki dedicated to *cough*quackery*cough* "CAM" treatments because they can't take the heat of criticism and evidence being cited on the really big wiki. Hence, like Conservapedia, they take their ball home and make their own rules against criticism on their site.
Anyway, Skeptico covered this, and Runolfr left a comment leading to a different Scampedia: The Encyclopedia of Scams. They cover quite a lot, including homeopathy, MLMs, and even some coin tricks. I haven't perused the site heavily, but it looks to be a promising resource. Those of you who have wiki inclinations might want to consider signing up to edit and whatever you people do.