Recommended site: the-isb.com
One of the first sites I check every day is The ISB. It’s the funniest, snarkiest, and most quotable analysis of comics I’ve ever seen. Even non-comics fans can appreciate the ISB’s sense of pop culture history, as well as its gratuitous images of super-heroes punching bears. Here are two classic posts to get you started:
http://www.the-isb.com/?p=980 -This one’s about a particularly awful issue of Tarot, which in itself is a particularly awful comic. By the time you’re finished with the post, you’ll have the worst line ever written in a comic book stuck in your head.