Prediction markets or information markets are tools for predicting the probability of an event occuring. The most famous prediction market is the Iowa Electronics Market which is widely quoted for its market prices on political elections. Even if you do not participate in a prediction market by opening an account and buying or selling contracts, it may be interesting to check the current market prices and how they react to the news similar to a stock quote.

The Intrade.com news feed reports prediction market news and updates