I'll put in another vote for willflyforfood.com as well. They usually have a couple of good leads on there that aren't found anywhere else.
climbto350.com is also good, but everybody and his brother are on there, so I've been having trouble even applying to several of those jobs. If you aren't on it in the first 2 hours it's out, the recipient mailbox (to apply to) is full.
Competition is tight out there for the few jobs that are available... Just one word of advice, avoid planejobs.com like the plague. They have a lot of "strange" jobs listed. And, I had several potential employers ask me for money up front to even apply. Riiiiiiiiiiiiiight.............