When i was shopping, i considered Kingsnake, morphmarket, and faunaclasifiedes to be the trinity of herp sites, though FB groups are more interactive, as a far as i know faunaclassified offers the most comprehensive system of "references" if you want to check up on a seller before you do business (but someone please correct me if i am wrong about that). All that being said, craigslist, the sleazy used car salesman of pet purchasing, is where i found Irwin and I couldn't be happier. But to use my positive experience as a cautionary tale: I only met the woman who produced Irwin when she posted a scam alert regarding a seller that i had contacted earlier about a (fraudulent) ad he'd posted. I contacted her just to confirm he scam alert and thank her, but we got to talking and it turned out she had the perfect snake for me.