InnoCentive - Open Innovation Marketplace Challenges posted by Seeker organizations present problems and offer rewards of up to $100,000 for the best solution.
The Rockefeller-InnoCentive Partnership cutting-edge resources for researchers and entrepreneurs addressing the innovation needs of the poor and vulnerable.
X Prize a multi-million dollar award given to the first team to achieve a specific goal. The goal is to create radical breakthroughs for the benefit of humanity.
oDesk "Changing how the world works" 1.5 million professionals finding contracted jobs
see also: Andrei Villarroel