A Madden game changer: How Gordon Bellamy pushed the popular video game to evolve - The Athletic
Madden Football History and EA's Other Notable Genesis Football Games - RetroGaming with Racketboy
ESPN - It's worth more than a game ❤️ (via NFL, EA SPORTS MADDEN NFL)
Retrospective: John Madden Football – Classic Gaming Quarterly
Madden NFL 2005 (PS2)- A Football Masterpiece that Gave Us Hit Sticks, A History Lesson, and the Last Great Franchise Mode, by James Cosby
This forgotten video game helped pave the way for Madden NFL
Vintage Ea Sports John MADDEN 94 NFL Football Sega GENESIS
Copy of 'John Madden Football' video game sells for world-record price
John Madden Football '92 Characters - Giant Bomb
Madden 23 review: Filler clutters an otherwise improved game - The Washington Post
How John Madden Became the Face of a Video Game Empire - The New York Times