MicroPlace.com just launched the other day and apparently actually allows you to charge a nominal interest rate so you can get a return on the loan. The point isn't to make oodles of money off of developing world entrepreneurs, but it is a slightly more attractive offer than Kiva's 0% interest loan. If you so decided, the interest you generate from MicroPlace could get then go back into another loan so the cycle continues again. Rinse, lather, repeat.