TweetLevel is a Twitter measurement tool created by @jonnybentwood and @alexparish at Edelman.

This tool is still in beta. Even though we believe that it goes a great way to understand and quantify the varying importance of different people's usage of Twitter, by no means whatsoever do we believe we have fully solved the 'influence' problem. What we would appreciate is your views, your feedback, advice and criticism is crucial in helping us understand social media measurement.