blaze your trail
Recently there was some discussion on Klout, their influence calculation is unclear. Many people were unhappy with the fact that their Klout Score is a moving target. People who actually use the numbers generated by Klout to find the influencers they want to contact also have the issue that they don’t see what the results are of their contacts.
Kred.ly is an interesting option as the scoring is extremely transparent, with this transparency the system could be gamed. This would need collusion on quite a large scale.
PeerIndex is less transparent, although it gives more statistics and information on the date it uses to calculate authority and score. Roughly your PeerIndex is an average of your Authority + Activity + Audience. Unlike Kred.ly it doesn’t give numbers on individual social actions, although it does give more direct feedback it can’t be used to directly game the system.
What all of them suffer from is that they see authority stemming from one account, and neglect to see that power users – who use different channels to curate content for different audiences – may have their klout spread thinly over places that aren’t included like multiple Twitter, Google+ or FaceBook pages.
Image source: me