ClustrMaps: See where your blog readers are located
ClustrMaps is a neat free service that lets you see where your blog readers are in the world:
See at a glance where your site's visitors are located: instantaneously, even when the numbers are enormous! Visitors don't need to click on anything: just viewing your page is sufficient.
One thumbnail map on your site shows it all: We provide (free) the HTML that gives you a thumbnail map, like the one on the left. When it loads, it increments a counter and shows the locations of all the visitors to your page, cumulatively (even for huge numbers). Clicking on it zooms in to a big world map, and (optionally) lets you zoom in to the continents, as in the example below.