Prediction Tournament

The US government is sponsoring a prediction tournament. From Freakonomics:

"Tetlock and a few colleagues are embarking on an ambitious new study of prediction — and even better, that they’re looking for volunteers. Specifically, they’re looking for people “who have a serious interest in and knowledge about world affairs, politics, and global economic matters and are interested in testing their own forecasting and reasoning skills.” 

Looks like it'll be interesting. You can sign up here.