SQUATS

This series of videos and Strossen's SUPER SQUATS have provided me with invaluable instruction on how to squat properly.

Also, I included an example of a bottom position squat by Brooks Kubik.

Something they do not mention in the video(s), but do mention in SUPER SQUATS. Find something roughly at eye level to stare at while you are squatting (not some chick's ass who is doing bent-over rows!), doing such will help you keep a flat back and an upright neck. Also imagine that an invisible string is pulling your head up and keeping your head in line with your spine.