If you've ever been in the submission process, or if you're getting ready to jump in, then you probably should be visiting Matthew MacNish's blog: The Quintessentially Questionable Query Experiment. In his words, it's "A clumsy attempt at making some sense of the sinister submission process..."
Personally, I don't think it's clumsy at all. Matthew's critiques are seriously helpful and thoughtful. So, go forth and check it out.