Hot on the heels of Klout‘s recent integration of Foursquare and Instagram, another social influence measurement service, Empire Avenue has announced that it is adding support for both those services.Empire Avenue is similar to Klout and PeerIndex, in that it measures influence of its users on social services like Twitter and Facebook, but throws in the twist of letting others buy and sell stock in users, speculating on their future value. It uses virtual currency, but brands are getting i [...]

Read More: Social stockmarket Empire Avenue follows Klout, tracks Foursquare and Instagram influence