Here it is an interesting article from socialmediatoday.com about crowdsourcing.
What crowdsourcing needs, according to the author (Maryanne Conlin) is :
Come up with an idea for your crowdsourced project
Check it against your objectives
Wander over to your colleagues and run it by them
Take it home and email it to your closest marketing buddies (all those friends from your college marketing classes can come in handy)
Test it on your target market.
More information and full article with conclusions at http://socialmediatoday.com/maryanneconlin/1564691/crowdsourcing-needs-expert-opinion.