As Twitter usage has grown, people want to quantify how influential some tweeters are, and I have been incorporating two commonly used tools, Klout and PeerIndex, into my work.
Klout’s strapline is “The standard for online influence,” while PeerIndex aims to help you “understand your social capital.” …
This post is now available here: http://www.blog.pwcom.co.uk/2011/04/19/measuring-influence-and-social-capital-in-construction/