My team and I did an analysis on our Facebook dataset recently that might (or might not) have inspired this particular work. You can find the geographic analys

My team and I did an analysis on our Facebook dataset recently that might (or might not) have inspired this particular work. You can find the geographic analysis within this blog post: http://blog.stephenwolfram.com/2013/04/data-science-of-the-facebook-world/ http://blog.stephenwolfram.com/2013/04/data-science-of-the-f... There is a much higher resolution version of the "migration wheel" available here: http://www.wired.co.uk/magazine/archive/2013/12/start/facebook-migration-station http://www.wired.co.uk/magazine/archive/2013/12/start/facebo...