twiDAQ is a free online fantasy stock exchange game based on Twitter. You can buy & sell fantasy shares in any public Twitter account. The volume of followers, retweets, mentions and listings each account makes counts towards that stock's earnings... twiDAQ is free to play online today - just sign up using your Twitter account to start trading!
Senior Editor at Wired. Host of the Storyboard podcast. I cover science and miscellaneous geekery, and I'm writing a book about the science of booze.