New Stanford-Developed High-Tech Helmets Could Protect Football Players From Debilitating Concussions
Park High School football blazes safety trail with Guardian Caps
Cincinnati researchers find helmets don't protect back of head
Football helmet with liquid padding may prevent concussions
New helmet design can deal with sports' twists and turns
Fight Against Concussions: New Tests Could Improve Football Helmets
It's A Surprise That Football Helmets Don't Actually Protect Against Concussions - Pledge Sports
N.F.L.'s Release of Data on Helmet Tests Raises Concerns - The New York Times
Guardian Caps Guardian Sports
Sherwood Foundation buys data-tracking helmets for every OPS high school football player
Army lab aids NFL effort to reduce player concussions - Duluth News Tribune
More padding the issue of concussions and better helmets
Find out how modern football helmets attempt to limit brain injuries