For those of you who ignore the more rauccus aspects of the dot com world, you may not have noticed that Tech Crunch 50 is going on right now. It's a big throw down in San Francisco where 50 startups essentially compete with each other to prove who's the next Google. I can't actually think of any next Googles that have come from Tech Crunch, but that's not the point.
The point is that my current favorite from the show is Trollim. It solves a problem most programmers are familiar with: one of dominance.
Developers sign up for an account on Trollim and pick their favorite programming language. Then, Trollim users fight each other to determine who is the best coder. It's like Facebook, mixed with World of Warcraft, mixed with Sourceforge.