The Geography of NFL Fandom - The Atlantic
Revealed: Sports Teams With the Biggest Global Following - Betsperts
NFL Fan Chant Power Ranking
Ravens Officially Have Some of the Best Fans in the NFL - Baltimore Beatdown
Most Super Bowl Wins: Which NFL Teams Top The List?
Ranking all 32 NFL fan bases
United States Map of Most Hated NFL Teams
Which NFL team has the most fans? Which one is the most popular? - AS USA
Map: Where NFL fans are on Facebook and Twitter - Vox
NFL Fan Chant Power Ranking
How Every NFL Team's Fans Lean Politically
Which NFL team has the most fans? Which one is the most popular? - AS USA
The 12 NFL Teams Who Have Never Won the Super Bowl — The Sporting Blog