NFL replay reviews, challenges drop with new rules and tech - ESPN
History of Instant Replay
NFL Replay Officials NFL Football Operations
History of Instant Replay
Upon Further Review: Instant Replay Should be Banned from Sports, by Connor Groel, Top Level Sports
NFL Week 1 Betting Trends, Stats, Notes: Action Network Newsletter
On Further Review, the NFL's Instant Replay is Finally Instant
Chart: NFL games are mostly commercials and replays - Vox
Behind the scenes at the NFL's new replay review center in New York - Sports Illustrated
South Philly Review 10-07-10 by South Philly Review - Issuu