Football helmets are creating more problems than they solve
Helmets don't eliminate concussions. It's time for the NFL to ditch them, NFL
More padding the issue of concussions and better helmets
A Helmet Shortage Is Hitting High School Football Across the Country - The New York Times
New tests for helmets proposed in concussion fight
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
What to Look for In a Football Helmet
AT&T and Gallaudet University unveil a football helmet for deaf and hard of hearing quarterbacks – WKRG News 5
Riddell launches Axiom, latest helmet to combat concussions
Accelerometers Could Finally Fix the NFL's Concussion Crisis
Experimental Helmet Aims To Fix Football