Ashoka Youth Venture has launched two new contests supporting social entrepreneurship for young people. The @15 Challenge, in partnership with Best Buy, offers 15 social entrepenerurs the chance for $10,000 in seed money. Participants submit entries and the public votes. In addition, the Staples Youth Social Entrepreneurship Competition offers several different prizes up to $1,000 for each business. These are both great examples of crowdsourcing applied to business competitions. Also check out Ideablob , the original crowdsourcing business idea competition.