I love craigslist for generic classifieds, it just isn't for selling pets.

I don't think a truely good classifieds site exists for reptiles. I'd much prefer to "shop" based off of references to quality breeders, and then check out their own personal website. Of course this doesn't help the very small-time breeders who produce maybe a clutch or two and want to sell off a few of the hatchlings.