If you were to do a search for the Nairobi city slum of Mathare on Google Maps, you'd find little more than gray spaces between unmarked roads.Slums by nature are unplanned, primordial cities, the opposite of well-ordered city grids. Squatters rights rule, and woe to the visitor who ventures in without permission. But last year, a group of activist cartographers called the Spatial Collective started walking around Mathare typing landmarks into hand-held GPS devices.
Location sharing is back in the news as new apps try to offer better mousetraps for sharing oneís location with friends and family. We look at PlaceUs and Jink. Meanwhile two well-known players, LinkedIn and Google, add location sharing where itís not been before. Do these new and enhanced entries suggest location-based services are maturing?