United States Football League (USFL)
USFL Championship ratings fall short of XFL Championship ratings - NBC Sports
The Official Site of the United States Football League
All of the Team Logos for the USFL's Return in Spring 2022 – SportsLogos.Net News
USFL unveils eight teams for inaugural season in 2022
USFL's Michigan Panthers and Philadelphia Stars to Practice at EMU - Eastern Michigan University Athletics
Two New Spring Football Leagues On Horizon – NFL Alumni
The Geography of NFL Fandom - The Atlantic
USFL, XFL Announce Intentions to Merge
USFL Player Selection Meeting set for February 22-23
NFL Football Teams - Official Sites of all 32 NFL Teams