howsocial.ru intends to be able to measure your social impact on the online world.

To achieve that, it combines the impact you have in a number of platforms in a single percentile index named CoSI (Collective Social Impact). At the moment you can submit your profile link for Twitter and Friendfeed and we take into account your public data to assess the combined effect of the proverbial ripples you make when you throw your pebble of contribution to these communities.