A friend of ours at the Huffington Post, Keith Thomson, has written an article about polls and prediction markets and the never ending argument about which are better.
We'll stay out of that fight in this post and just say that in support of the article we've agreed to stand up a separate marketplace and chose a few close races to let people trade in. Keith said whoever does the best money-wise after the elections are over, he'll interview and try to get them featured in another article. Just think, you can brag to your kids about how you were in the "papers" for your skills.
Sounds like a decent incentive to get over there and see what you're made of: http://elections2010.inklingmarkets.com.