Professional Football Researchers Association is a nonprofit organization dedicated to preserving and, in some cases,reconstructing professional football history. 职业足球研究者协会是一个非赢利的组织，致力于保护和重建职业足球历史。
Football.com
Football.com includes scores, stats, cheerleader of the day, international almanac, and much more. Football.com 包括得分，统计，啦啦队，国际性比赛年鉴等。
National Football League 美国国家足球联盟
SuperBowl 超级杯赛
Official site of the Super Bowl of National Football League,providing general information about Super Bowl.. 美国国家足球联盟超级杯赛的官方站点，提供有关超级杯赛的全面信息...
