Hey, How about reviewing Radar URL? It gives you as Webmaster/Blogger an option to add a Widget that will be located at the website & Will trace/spy your visitors in real time. As quoted: By putting our widget on your page, an image is loaded every time someone visits your page. This enables us to count and keep track of your visitors. From the data we collect in this way, we determine the country of origin, the webpage someone is visiting and more. We then show this information on the widget and on the advanced statistics page that you can view by clicking the widget.
Nice design. I like how you give the javascript code right on the homepage with no registration needed. That will get a lot more people to use it.