Actually, we primarily look at just the clickthrough rate on the links to determine someone's influence. Influence is highly categorical. For example, if I twe

Actually, we primarily look at just the clickthrough rate on the links to determine someone's influence. Influence is highly categorical. For example, if I tweet about tech things, I'll get many clicks since most of my followers are techies. If I tweet about horses, ... not so many clicks and therefore I have a poorer influence for "horses". Klout and # of followers abstract away these fine-grained details that, IMO, are critically important in determining social influence.