Kiva.Org

Social enterprises have a history at Stanford. While he was still a student Matt Flannery founded Kiva.org, which links individual lenders to microbusinesses worldwide. Flannery was a judge in this year's Social E-Challenge competition. It "seemed far-fetched at the time," that people would use the Internet for lending, he says. But, Kiva's loan portfolio has grown to $80 million.