With all the buzzwords coming out of social media, social capital is one I have trouble picturing and quantifying.

PeerIndex is a neat social capital analysis tool. It aggregates tweets data from users and rate them against 8 benchmark topics:

  • Arts, media and entertainment
  • Technology and internet
  • Science and environment
  • Health and medical
  • Leisure and lifestyle
  • Sports
  • News, politics and society
  • Finance, business and economics

Topics analysis is done using shared URLs from tweets.It’s still a work in progress.

PeerIndex also ranks users based on three components: Activity, Audience and Authority. These components are estimated using tweets volume, frequency and retweets.

And yes, for developers, they do provide an API. Sweet.