I found my old Gathering cards (e.G. Antiquities), and want to sell. Is there a good AI software that determines which cards are mint etc? I feel uncomfortable selling on eBay, b/c I have no clue.
If you are in the USA you can send cards in bulk the CardKingdom.com. I know some people that even did this from outside the USA.
If it were me I'd find a local game store, and go ask the guys there what they use.