3 Ingenious innovations from the NFL's Helmet Challenge
Protective helmets make sports safer
In Race to Develop Safer Football Helmets, Many Questions Remain - The New York Times
NCAA football helmets: Is style jeopardizing player safety?
Engineering safer helmets - The Suffolk News-Herald
Football helmets are creating more problems than they solve
Football helmets don't provide much protection from concussions, study suggests - CBS News
This Helmet Will Save Football. Actually, Probably Not. - The New York Times
NFL to test new position-specific helmet designed for linemen
ISU engineering students design, study safer football helmets - College of Engineering News
A football helmet design that listens to physics – Mechanical Engineering
NFL Helmet Challenge Raises the Bar for Helmet Technology and Performance, Awards $1.55 Million in Grant Funding to Help New Models Get on Field Faster
Revolutionary new ZERO1 football helmet may help NFL players reduce concussions