Perhaps not necessarily from a snake site, but from a reptile classifieds site in general...

Nothing against KS or Fauna but if you're looking for a very particular animal their search engines for their classified ads still leave you wading through way too many results. I would like one where I can filter based on:
- Species
- Sex
- Hatch Year / Age
- Morph (with the ability to select multiple genes and filter out hets if you only want to see visuals)
- Seller's state
- Price Range
- Proven breeder

If you need to see an example, something like gunbroker.com except for herps.