[mathattack]

Is the issue that it's very difficult to come up with a universal popularity score? It seems like they were trying to find the clique that rules the high school, when in the real world we listen to different people for different things. Of course one score is much easier to sell to marketers than a large series of scores based on different attributes.

The strange thing is - as long as advertisers pay people to Tweet, there is a need for something like this.