I think this site would be shut down pretty quickly if they were peddling fake stuff considering how much $$$ flows through every week. Lots of the auctions have pictures of the players actually signing. Think most if not all of the autograph pieces come with certification from a place like Beckett or JSA with a serial number that you can type in on their site to get info on whose signature it should be and the date and location in which it was signed. Don't think there are many private sellers. The three things that I have purchased have been personally witnessed by a Beckett rep....so they probably occurred at a signing event where the players roll through just a bunch all at one time.