Chris Harrison created this interesting map of the world's Internet Map, a connection density that visually depicts the structure of the web (by router configuration):
The first rendering displays the relative densities of Internet connectivity across the globe. The stronger the contrast, the more connectivity there is. It is immediately obvious, for example, that North America and Europe are considerably more connected than Africa or South America. However, it is important to note that this only reflect density of connections, and not usage. Hundreds of people may utilize a single connection in an internet cafe, often the only form of connectivity people have access to in developing nations.
Link (larger pic) - Thanks kaiserandi!
We always point out how odd it is that the density in America drops right in the middle...in almost a perfect line. It looks more apparent on Halo, but you can see it here, as well.