You are presented with the screenshots of two websites side by side. If you click the screenshot of the site you think looks best, the page reloads and you start all over again. It never ends.
Basically, it's Hot or Not for websites.
We've submitted the Studioblog and the Union (formerly Studiobanks) website (they just recently added the ability to thumbnail Flash sites) and they've had their fair share of victories. Regardless of the outcome, it's good clean fun.