Discovered via a Steve Rubel Tweet: Tweeterboard, an analytics tool for Twitter users.
Tweeterboard is a way of looking at who is influential on Twitter based on their conversations with other Twitter users. There are other services, like Twitterposter, that base influence on how many followers you have. Tweeterboard looks at who talks to you.
Tweeterboard also captures links posted to Twitter to generate a list of the most popular links.
Twitter users have to sign up by becoming a Tweeterboard follower.
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