The Geography of NFL Fandom - The Atlantic
NFL relocation: San Diego move to LA brings up idea of no teams ever moving - The Phinsider
THE SECOND CHANCE SHEEPDOG: An Idea for NFL Realignment
NFL Fan Map: Favorite Team by County
Redditor Creates Geographically-Based NFL Divisions, News, Scores, Highlights, Stats, and Rumors
NFL TV Coverage Map: Week 5 - Sports Illustrated Arizona Cardinals News, Analysis and More
NFL Twitter map: Every football team's popularity visualized - Thrillist
Which NFL Teams Do Americans 'Like?' Facebook Map Has the Answer
Why don't the teams chosen for each NFL division make sense geographically? - Quora