Hope Runs is a nonprofit social enterprise working in Kenya and Tanzania that uses athletics, education, and social entrepreneurship to empower AIDS orphans. In this audio interview, founders Claire Williams and Lara Vogel talk about how they have turned their idea of using marathon running to "outpace poverty" into a vital organization that partners with AIDS orphanages to have a real influence in children's lives. They discuss their model, how they use volunteers, and advice for social entrepreneurs.