Data mining at its finest
Facebook's Data Science team has combed the more than 35 million users who have "liked" a team's fan page, and put it into graphic form, down to the county level. Sean Taylor, who headed the research and analysis, was kind enough to send along the high-resolution maps.
http://deadspin.com/5979970/facebook...p-ever-created
Confirmation of the Steelers' nationwide popularity is the top five most common allegiances for Facebook friends of fans of each team.
https://www.facebook.com/notes/faceb...51298370823859
Note Ravens fans have Steelers fans as friends but Steelers fans do not have Ravens fans as friends