| About.com: Football History: Includes annual award winners, Super Bowl and NFL Draft History plus franchise genealogy. |
| Chris Creamer's SportsLogos.net: History of the logos of the National Football League, part of a virtual museum of sports logos and uniforms. |
| Chronological History of the Modern NFL: A time line of how the NFL grew from 1933 - 2001. |
| Football @ JT-SW.com: Database of NFL history with team and player statistics from 1920 to present day, including some box scores. |
| Football Junk: NFL Statistics for each player, team, and league in pro football history. |
| Football.com - NFL History: Genealogy, current teams and defunct franchises. |
| Ghosts of the Gridiron: The Early Days of Pro Football in the Philadelphia Area. |
| Golden Age Era Sports: Football: A history of the leagues and teams from the Golden Age of Radio (1920-1967). |
| HickockSports.com: List of passing, rushing, receiving, scoring, interception, punting and punt return leaders. |
| I-NFL Helmet: Offers the history of each NFL team's helmet logo. |
| Infoplease: Football Almanac: Database including Super Bowl statistics, leaders, champions and awards dating back to 1920. |
| NFL History: Capsule histories of every NFL team. |
| NFL Legends: Capsule histories of legendary players and teams. |
| NFL Team Nicknames: |
| NFL.com: History: Franchise history, nicknames, draft history and famous dates. |
| Orange Athletic Club of New Jersey: Complete Football Records (1887-1936) |
| Pro Football Hall of Fame: History: Chronology, events, champions, former players, draft history and team information. |
| Pro Football Reference: A database containing historial stats from every NFL team and most of the players. |
| Professional Foortball Researchers Association in Western NY: Articles on professional football in Western NY prior to 1970. |
| The American Football League (1960-1969): Offers history, facts, photos, cards and player information. |
| The NFL History Network: A fan-operated site with individual team histories, statistics, box scores and trivia. |
| Wikipedia: Defunct NFL Teams: Encyclopedia article on teams no longer in existence. |
Classical
