Other very cool YouTube videos:
Middle Quick Attacks: VIDEO
How to Spike: VIDEO
How to Tip/Roll/Cut: VIDEO
Reading Hitters: VIDEO
Passing Float Serves: VIDEO
Drills to do at home: VIDEO
Although we're not completely the same as THIS VIDEO, you can understand the idea behind serve receive efficiencies and "stacking".
THIS VIDEO shows the basic rules of rotation.
THIS VIDEO shows 5-1 with Libero (M1 or M2) playing back row middle - We swap Libero and Back-row left. Our Libero plays left back.
THIS VIDEO shows all 6 receive rotations and many common permutations
BASE Defense: VIDEO
So you want to play in college? Start HERE.