What is with these funky helmet decals? - Dawgs By Nature
New helmet design can deal with sports' twists and turns
NFL at 100: Helmets go high tech in quest for player safety
The history of chemicals and the football helmet
The safety story behind the unusual helmets NFL players are wearing this summer - OHS Canada MagazineOHS Canada Magazine
New Smart Helmet Could Spot Concussions in Real Time
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
New helmet design can deal with sports' twists and turns
The Football Helmet. Personal Selection, by Brandon Martin
Football helmets at Philadelphia-area high schools shed light on growing concussion concerns
An Inside Look at the Riddell Axiom Helmet - Boardroom