Another service identifies people's social influence with a focus on sampling.

Piers Fawkes, PSFK
Piers Fawkes, PSFK on February 28, 2012. @piers_fawkes

Another service identifies people’s social influence with a focus on sampling (and word of mouth sharing). PeerPerks says, “If you’re active on Twitter and Facebook and you like testing out new products then we’ll give you free stuff for you to try before anybody else. If you like what you get, share your thoughts online so your friends can find out about cool new products too.” PeerPerks