Using Facebook to split up the US FEB 09 2010
Data from Facebook reveals how the United States is split up into different regions like Stayathomia, Greater Texas, Dixie, and Mormonia.
Stretching from New York to Minnesota, [Stayathomia's] defining feature is how near most people are to their friends, implying they don't move far. In most cases outside the largest cities, the most common connections are with immediately neighboring cities, and even New York only has one really long-range link in its top 10. Apart from Los Angeles, all of its strong ties are comparatively local.