Did you fall for TwitterRank ?
TwitterRank, a ranking algorithm for Twitter users which currently tops the Twitter search topics, is an elaborate but probably harmless prank.
prank
Add Humorous Captions and Graphics to Any Photo on Any Website
Often times, you stumble across a picture that you would like to write about but you may not own a license to work with that photo. By using PhotoCrank, you can annotate and comment on the photo, on its original website.