I came across this mapping system on another forum for the wifes car and thought it was pretty cool. Its not hard to add yourself. Here is the instructions to add yourself to the map:
To add a marker just click on the "Additions" tab on the map and select either 'Add Marker - Simple' or 'Add Marker - Detailed'. Detailed allows for a pic and/or video. You can zoom in/out using the slide bar or the mouse wheel. Also, by clicking on View, then Show List you can see the complete list in alphabetical order of all the usernames. Alternatively, you can click on << at the top of the elevator column on the right to see the list. To close the list just click on >>.
Here is the link to see the map.