Bankruptcies vs preforeclosures? What's the difference?

[Eden Villarreal]

Newbie question here. I'm new to real estate investing and I would like to invest in preforeclosures. On the foreclosure.com website they have listed under tabs a section for bankruptcies and preforeclosures. Are these two really the same thing or no? Under preforeclosures they have nothing listed but several under bankruptcies. Any help would be greatly appreciated. Thanks

ehvilla