Zopa and Prosper represent a resurge of Social Lending in the Internet era. Also called the “E-Bays for Loans”, these companies are trying to prove that Internet-Based Peer-to-Peer (P2P) Microcredit is not only convenient for both borrowers and lenders, but it may also be good business. In the developed world to which this model currently serves, this statement still needs to be proved as volume increases, more borrowers excluded from mainstream banking are incorporated and Return of Investment (ROI) rates can be calculated for longer periods. Prospects for the developing world are even more difficult to foresee, but it is clear that the same issues are applicable, plus more basic elements such as a better IT infrastructure, more developed credit and payment systems and a friendlier regulatory environment. First, I describe the basic characteristics of the business model. Second, I show some of the preliminary problems this model is evidencing in its short life. Third, I perform a simple mental exercise on which might be the problems this model will face in the developing world. At the end, I conclude and present some suggestion for further research.