Scientists have trained algorithms to determine your "urban tribe" from your online photos.
A growing summer camp is giving young women the skills they need to get high-paying tech jobs, before they've even graduated from high school.
A new system tracks food illness by parsing mountains of geo-tagged data.
Those digital screens at bus shelters can be used for crowd-sourced academic research.
Too busy to worry about little things like "health" or "pedestrian safety"? Your smartphone is on it.