There are 4 major things you want to focus on while running: 1) crown to coccyx alignment (ie, tall posture, looking forward), 2) quick cadence (180+ footstrikes per minute), 3) forefoot foot strike followed by heel contact, and 4) Relax, relax, relax.
Ken Bob, http://physicalliving.com/learn-the-skill-of-barefoot-running/
* posture * bouncy rythm and short strides * relax
Lee Saxton
Get down in your knees!