explore 2008 forecasting
Do your own electoral math for 2012 on this interactive map. HTML5 compliant browser required.
Or, check out the 2012 electoral map and Intrade forecast.
Electoral-vote.com - is a great site to check out the latest polling data for the 2010 senate races. There are maps and tables to look at, as well as a blog/newsfeed that is updated very regularly.
USElectionAtlas.org - extensive historical and current election data. Great maps.
Scientific American: Super Tuesday
NBER: Can Markets Predict the Future?