Unpublished? You really should be reading Miss Snark right now

Right before Labor Day, Miss Snark accepted a bunch of query letters and first pages. She put them, one by one, into what she calls the Crapometer and then posted each one and her comments for all the world to see.

While occasionally, well, snarky, her comments are right on the money. You can see exactly why she loses interest - and learn from other people's mistakes.