Here’s a quick rundown of some social media influence measurement systems as featured in a recent issue of Adweek:
Klout – the most consumer facing of this list – most criticized – offers perks to those with high Klout scores
Kred – data driven – they build communities around topics in an effort to appeal to agencies
PeerIndex – creates a “reputational capital” score
Socmetrics – beta stage platform used by Ogilvy and Deep Focus
Tweetlevel – from Edelman – Free influence-ranking engine
Traackr – aimed at ad agency business
Twitalyzer – Twitter analytics powered in part by Klout and Peerindex data
Proskore – “the LinkedIn of influence measurement”