See the new football helmet that got funding from the NFL
Concussions: Revolutionary stride, Local Sports
Concussion Prevention: Senator Wants Crackdown on Product Claims
The Fruitless Search for a 'Concussion-Proof' Football Helmet - The Atlantic
NFL Concussion Prevention: Could New Helmet Save Football?, News, Scores, Highlights, Stats, and Rumors
SAFR Helmet Covers – SAFR Sports
NFL Hopes to Reduce Head Injuries With Helmet Experiment - Bloomberg
Why Football Helmet Manufacturer Riddell Should Be Very Concerned About Concussion Litigation
Kickoff rule tied to fewer concussions in new research