Facebook taps GPS, Square to track your in-store visits and purchases

 Facebook has found the Holy Grail of advertising in a set of new partnerships with point-of-sale systems like Square and Marketo that will prove who bought what after seeing Facebook’s ads. Even if you don’t buy something, Facebook will also now know you visited a store based on a new feature that matches GPS, beacons, WiFi, radio signals, and cell towers with brick-and-mortar… Read More