Map of the most hated CFB team by state
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The Most Popular NFL Teams In States That Don't Have One
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Who Are the Internet's Most-Searched NFL Teams and Players Ahead of This Year's Super Bowl?
More of America rooting for Bengals to advance to Super Bowl than any other team left
Map of the Day: Top NFL Team Sales Per State
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Most Popular NFL team map (2016) : r/MapPorn
America's Favorite Out of State Football Teams, Mapped - Custom Ink
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This map shows the Patriots were America's most-hated team in 2018
Football Data Visualization Inspiration: 38 Vizzes from the Gridiron
Plotting image files over states in a US Map in R - Stack Overflow