I've always been a fan of Dr. Rob Wagner's squat and his writing. Great stuff all around. I don't know if he's put out anything recently, but I hadn't read the interview by "Johnny Pain" below and it was fun.
The Myths of The Squat and The Bench Press - article for the USAPL by Dr. Rob Wagner
Low Back Strength for Squatting from Dr. Rob Wagner's blog
Interview with Dr. Robert Wagner from "The Blog of Johnny Pain"