The following sites introduced me to the wide world of camp cinema and there's no reason why they won't make a great introduction for you too!
|http://badmovies.org/ A great film archive site with short recaps of true B and Z grade cinema. Also has lots of multimedia content including wav files and mpeg clips.|
|http://jabootu.com/ An old site that specializes in (almost) only obscure cinema.|
|http://agonybooth.com/ A personal favorite which specializes in thorough recaps. They've recently allowed user recap submissions which has resulted in a turn towards more contemporary camp cinema (not a bad thing). Also has a very active user forum.|
|http://www.badastronomy.com/bad/movies/ Phil Plait's an astronomer on a mission: to kick the crap out of movies who disobey the laws of physics. A unique way to critique films, to be sure.|