Prediction Markets
I'd never really heard of prediction markets before this post. Does anyone know the reason prediction markets are legal but other forms of online gambling such as poker are not?<p>Edit: Apparently they've just recently started using real money at some prediction markets: <a href="http://en.wikipedia.org/wiki/Prediction_market#Legality" rel="nofollow">http://en.wikipedia.org/wiki/Prediction_market#Legality</a>