Measuring the economy with location data

Carrying your smartphone around everywhere has become a way of life. In doing so, you produce a surprising amount of data about your role in the economy—where you shop, work, travel, and generally hang out.

Mapping food deserts

(PhysOrg.com) -- Maps are great for showing where things are. They’re also good for showing where things aren’t.

Review: AAA iPhone app offers member discounts

(AP) -- An organization rooted in 20th century car culture is joining 21st century smartphone culture. AAA has introduced a free iPhone application called AAA Discounts, which uses GPS technology to instantly identify nearby ...