http://reelroulette.net/
It's supposed to be a gimmicky and easy way to find motion designers. Basically, you can upload "reels" and people can view random ones and vote on ones they like. It's kind of like Chat Roulette, except with no penises (so far).
You can read more about the making of the site here:
http://almosteffortless.com/2010/03/26/reel-roulette/
The thing that makes me happy about this site is that it was built in about 30 hours of work between 3 people. I know it's nothing too special and has plenty of room for improvement, but people seem to be enjoying it so far.
I'd love to hear any ideas you may have about improving the site, and I'm pondering potential ways to make money from the thing without spoiling it. It's been fun as-is, but it would be nice if we could justify spending more time on it than we already have by way of making some cash.
Any feedback more than welcome. Thanks!