SlushPile Hell. Apparently started by a frustrated agent, the site posts snippets from really bad queries, along with snarky comments from the agent. Don't worry. No names are posted :)
Reading that blog gave me flashbacks to the horrible queries I sent when I first started out. I sent some seriously cringe-worthy stuff like, "Do you believe in faeries?" as my opening line. *blushes*
What embarrassing missteps did you make on your first queries?