New high-tech helmets may protect American football players from debilitating concussions
Schools, players use their heads to address issue – Boston Herald
How are H.S. football helmets tracked & managed? Investigation reveals lack of uniformity
I-Team: Many Tri-State Schools Use Football Helmets That Don't Protect Well Against Concussions
See the new football helmet that got funding from the NFL
The Extra Yard: The Ins and Outs of an American Football Helmet - Stories
A former Harvard quarterback tackles NFL concussion woes
Football helmets have improved but are far from 'concussion proof' – San Bernardino Sun
Cincinnati researchers find helmets don't protect back of head
Study: We just don't know enough about youth concussions
Can a Better Football Helmet Save Your Kid's Brain? - Washingtonian
Football helmets don't protect against concussion — and we're not sure what does
Football Concussions: Prevention, Diagnosis & Recovery