the American Association for the Advancement of Science has an interesting initiative
for mobilising expertise using social networks

http://expertlabs.org/

this is a different approach from the successful Innocentive Model

https://www.innocentive.com/innovation-solutions/non-profit-innovation

here is expertlabs

http://expertlabs.org/about.html

AAAS founded Expert Labs, under the direction of technology guru and blogger Anil Dash, with the goal of helping the government engage the scientific community in a meaningful and sustained online dialogue. Harnessing the power of social networks like Facebook and Twitter, the Expert Labs initiative allows lawmakers to enlist the scientific community’s help in creating policy, turning these powerful platforms into new tools for advancing science.