They will be able to shed some light on the 'skinny' that puzzles you.
And of course..we all know there's no scams on the internet.
If you are a serious and qualified buyer, pick up the phone and call a real estate professional.
These websites are not necessarily a 'scam' but you need to be careful to read the terms and conditions so you know exactly what you can expect to get for your money.
the best advice I can give to the average buyer or investor who are interested in purchasing distressed properties at a discount is to find a good real estate professional to work with. No, they can't represent you at the auction, but they can represent you BEFORE the auction, as a buyer of a short sale property, and/or AFTER the auction, as the purchaser of a foreclosed home. Think about these options, it's a lot less risky and probably as good a bargain, or at least almost as good, as buying at auction and not knowing what you are going to actually get.