Maps Mania: The Map of Football Fandom
College football attendance declines for seventh straight season to lowest average since 1981
How Much Do NFL Teams Make? Packers Fans Paid to Find Out. - The New York Times
Where is NFL popular outside the United States? A look at the global penetration of the league
The most popular NFL teams in Europe 🏈 Who reigns supreme?
Louisiana's Sugar Bowl Country Kickoff to Celebrate Start of College Football Season - Sugar Bowl
Why Does the NFL Play in London?
Major League Sports Fans' Political Affiliations
Professional sports leagues in the United States - Wikipedia
How Every NFL Team's Fans Lean Politically
Which country outside of North America is the NFL most popular in? - Quora
Neyland Stadium - Facilities - University of Tennessee Athletics
Twitter breaks down NFL fan bases across the country