These videos are some of the great videos found on online related to respiratory therapy.

Transpulmonary Pressure Demonstration

Spirometry

High Frequency Oscillation Videos from Children's Hospital Boston

Awake Intubation

Endotracheal Intubation

Arterial Line Insertion

YouTube Playlists (requires Flash) 

General Videos

Breath Sounds

(If you are viewing from an Apple iPhone/iPad/iPod Touch you can find the "General Videos" and "Breath Sounds" Playlists on the respresource Youtube page)