That picture that your son just posted from the school gym? It can be traced. The picture of your daughter and her friends being goofy at a slumber party? It can be mapped.
You do it. I do it. Our kids are doing it - posting pictures online from our smartphones, but are we sharing more than just a funny photo? It seems that if you know what you're looking for, you can pinpoint, on a map no less, the exact location where a photo was taken