OSHackers is a website that aims to count GNU/Linux users and place them geographically using their Linux distribution as the marker. You can visit OSHackers and put yourself on the map, and you can search for people that use Linux around your area.
Right now the website counts only 216 GNU/Linux lovers, but it is up to us to spread the word and make this tool more useful and feature richer.
The procedure is pretty simple. Just press the “Register Yourself” button on the lower right of the website and enter the required data. There are over 70 different Linux distributions to choose from, and you can even contact the registered users by mail.