Tentative deal between NFL, regular referees is 'at hand
NFL, officials' union meet again - The San Diego Union-Tribune
For NFL officials, it's a side job that requires a lot of work
Why the NFL would rather lockout referees than pay $16 million
NFL officials receive ovation upon return
NFL referee lockout finally ends.
espnW -- Female referees deserve their chance at the pros - ESPN
NFL Referees Won't Attend Training Camps, Will Likely See First
Breaking Down the NFL's Referee Lockout
Does Ultimate Need Referees? - Ultiworld