I just came across this new service called Flowtown which is pretty interesting. 

 

The platform lets you upload your contact's email addresses for which it then returns the respective social profiles on Facebook, Twitter, MySpace, LinkedIn, Flickr and StumleUpon. And if all you have is an email address, the service can also give you a name, age, gender, occupation and location. But the best part is the integration with Klout, a service that determines a person's influence level based on Twitter and basically identifies your most influential contacts for you. 

 

Have a look at the below chart, which shows the statistics for all my 1,800 contacts compared to the 50 identified influencers. Not surprisingly, but still interesting to see is that the influencers are definitely much more likely to have a social profile online across multiple networks and that all Twitter influencers also have a Facebook and LinkedIn account.

Visit the official Flowtown website or watch the below demo video to find out more.