I don't know if any one else participates in "The Hollywood stock exchange" but it's a pretty cool stock market like game, only it uses hollywood stars and movies. I'm getting my absolute ass kicked, but I've adjusted my portfolio for a quick come back.
Check it out at
Welcome to the Hollywood Stock Exchange - The Entertainment Prediction Market. Once you sign up, post your username so all of us can track you.
My username is Inogenius, as usual.
Edit: What the fuck is with Monks adding the site's title to the link? Lame. The address is hsx.com