Kiva microfinancing
Kiva allows anyone with a computer to make loans to the very poor. Examples of activities from Worrell, New York Times, NYT. Brian Oberkirch says that that repayment rates are high because of close-knit communities:
the Kiva founder told me that they have crazy high repayment rates for their microloans. ... Matt said that in most cases, the local communities themselves are making decisions about who gets the microloan. To fail on the loan is to fail your comrades. Everyone is too embarrassed and wedded to the expectations of community to let the loan fail.