Hollywood Stock Exchange

There is a great website where movies and actors are traded instead of companies and mutual funds. You can open an account, take your starting funds, and begin trading right away. It's called the Hollywood Stock Exchange. If you like movies, and think you can do a good job of predicting which films will succeed at the Box Office, check it out.

I've managed to double my money in a few months, but it took a little while to understand how the site works. You have to follow movie news and make some pretty big bets at times. Speed Racer (to be directed by the Wachowski bros. of The Matrix fame) has payed off pretty big for me.