looks like hotels.com, Hertz, Kwik Trip and a few other big sites have used Share It Up in the past year...
Share It Up!, a subsidiary of PeopleString Corporation (OTCBB: PLPE), announces that The Hertz Corporation (NYSE: HTZ) has launched a new social media campaign using Share It Up’s patent-pending Social Coupon platform, which enables consumers to increase the value of a special offer by sharing the promotion through their social networks, and enables brands, retailers and agencies to increase customer engagement and amplify the reach of their marketing programs.