Why run barefoot?
This is a nice little video demonstrating why barefoot or minimal running is beneficial.
From YouTube: Same runner, same day, with no instruction given in between videos. On the left, correct nice SHOE LESS forefoot strike. On the right, incorrect, with SHOES, heel strike, braking, straining. Sneakers are designed to affect the way our foot strikes the ground, yet in this video you see it affects what we do in the air. Try this experiment yourself.