Cnet: So what makes someone on Twitter influential?
My two cents is that it starts with not posting your every Foursquare check-in, obliquely mentioning meetings you can't talk about, or sharing your latest bodily function.
But a team at Hewlett-Packard Labs tried to find a more scientific answer by analyzing 22 million tweets published in a short span. It found that it's not the visible metrics that truly define the influentials.