Crowd Factory has a great photo contest application where users can upload their own photos and others can vote for their favorite. There was also a video version of this functionaity on the Crowd Factory product roadmap that was about to be started when they were acquired by Marketo. With social engagement becoming an increasing part of B2B demand generation strategy, it would be nice to have both of these modules integrated into Marketo the way the Referral, Video Share, Polling, and Sweepstakes have been integrated.