Innocentive.com

"InnoCentive® is an exciting web-based community matching top scientists to relevant R&D challenges facing leading companies from around the globe. We provide a powerful online forum enabling major companies to reward scientific innovation through financial incentives."

http://www.innocentive.com/

FLOW could offer an analagous web-based set of competitions for social entrepreneurship projects. Instead of, or in addition to, periodic high-profile competitions, an ongoing competitive framework for intelligently-designed do-gooder solutions.