Here's a wonderful site that June Faramore from SL showed me. I absolutely love it. Proof that you do not need to follow the "rules" to get published!
My favorite part so far is Robert Heinlein's business rules:
1) You must write.
2) You must finish what you write.
3) You must not rewrite unless to editorial demand.
4) You must mail your work to someone who can buy it.
5) You must keep the work in the mail until someone buys it.