500 Friends, the social loyalty solution for e-commerce retailers, is announcing it has completed a $4.5 million Series A round led by Crosslink Capital, with participation from Intel Capital as well as company CEO (and angel investor) Justin Yoshimura.

Founded in 2010, and launched in summer 2011, YC-backed 500Friends’ LoyaltyPlus service allows merchants to reward their loyal customers who are tweeting about their purchases, posting to Facebook, referring friends, writing reviews, signing up for rewards programs, and more, all through a white label offering that can be integrated onto the retailer’s own site, on either web or mobile.

Source : Tech Crunch