Last month Paul Butler released an awesome map visualization of Facebook connections around the globe.
Now Andreas Kaltenbrunner has cleverly reverse engineered the idea, and created similar images for Spain using data from Tuenti, a Spanish social networking site. The benefit of concentrating on a smaller geographic region in more detail is that connections between towns and cities are much more apparent than the Facebook version.
You can find hi-res versions on Andrea’s site. The appropriately named Beauty of Social Networks.