Platforms where volunteers can collaborate on innovation, such as Innocentive
"Though today's nascent ideagoras have yet to reach eBay-like proportions, companies such as InnoCentive, yet2.com, Nine Sigma, and YourEncore have planted the seeds for a sea change in innovation. They could arguably spur even more profound changes if services such as InnoCentive looked and behaved a little bit more like the open source software community.
For the time being, InnoCentive solvers don't naturally coalesce into large groups focused on collaborating to solve a single problem. Nor does InnoCentive offer the openness and transparency of open-source software. Seeker businesses can cloak their identities, and solvers may never get personal credit for their contributions. " (http://www.businessweek.com/innovate/content/feb2007/id20070215_251519_page_2.htm)