Disclaimer: I claim no responsibility for these videos. Perform these according to your own ability and at your own risk. These are meant to be resources and not fitness gospel. The videos in this library may change from time to time.
Crossfit Video Tutorials:
Air Squat Tutorial by SurfBodyFitness
Kipping Pull-up Tutorial by SurfBodyFitness
Muscle-Up Progression with Jason Khalipa
Kipping Handstand Push-up Tutorial with Jason Khalipa