Brands such as Philips, Hamilton Beach, Elmer’s, Murphy USA and Seagate are offering prizes to consumers who check-in to Walmart, Target and Best Buy via Whrrl.

Kellogg’s and Marie Callender’s are the launch partners for USA Weekend’s mobile shopper marketing program that connects marketers to 47 million readers via location-based technology.

Pelago and Collective Bias have partnered to launch a mobile social shopping tool that lets brands offer consumers exclusive in-store promotions, coupons and discounts.