Fapmapper, a gps guided mapping system using Google Earth that allows users to chart the occasions where they had to "take matters in hand" or indulge in public sex. This blog has a pretty good run down on the service.
Numerous spots around the globe have been tagged with this new amorous cartographic service. San Antonio, Texas currently holds the top ranking among cities but the numbers might be "out of whack".
In the old days I guess one would have had to leave a flag or something. I don't really see the need to proclaim my conquests to the rest of the world, especially if they are of a solitary nature but I guess it takes all kinds. And stay away from that northeast quadrant of San Francisco. It looks slippery.