recoiledsnake writes: Google is beta-testing a program that uses smartphone location data to determine when consumers visit stores, according to agency executives briefed on the program by Google employees. Google then connects these store visits to Google searches conducted on smartphones. If someone conducts a Google mobile search for “screwdrivers,” for instance, a local hardware store could bid to have its store listing served to that user. By pairing that person’s location data with its database of store listings, Google can see if the person who saw that ad subsequently visited the store.It is easiest for Google to conduct this passive location tracking on Android users, since Google has embedded location tracking into the software. Once Android users opt in to location services, Google starts collecting their location data as continuously as technologically possible.