Markus Thompson was scuba diving and came across a formerly nice cannon camera that was a little worse for wear after being submerged. He recovered it and was surprised to learn that the pictures were recoverable. So he grabbed three pictures and took a few pictures of the camera. He provided the location he found it, make, model, serial number, and other pertinent details and posted it to Google+ (a social networking site). It turns out, the camera has been down there a while. Through the magic of social networking, he was able to learn the original owner and has contacted that person.