I am a real fan of Google Maps and Google Earth, often going on virtual travels around the world. Maybe it somehow scratches a life long travel itch in me? When I found the Geo Visitors tool I immediately decided to add it. Being just an link image it is unobtrusive and quick loading.
What it does:
Click on the image link which you install on your site and you are taken to the Geo-Visitors site. A google map shows icons for the locations of your site visitors for the last 24 hours.