The scam du jour is Publish America. Well, maybe scam isn’t quite the right word. Perhaps “vanity press in disguise” or “author mill” is better.
Publish America makes its money selling books to its authors. They deliberately mislead authors about the publishing industry and have policies that almost guarantee that bookstores will not purchase PA books. There is much, much more, so click the first link above for the full scoop.
Run away, serious writers. Find an honest publisher.