Do a search for "HVAC" in YouTube's Education database to find thousands of educational videos on every aspect of the industry.
Visit WXTV for more episodes about energy efficiency, renovation and weatherization.
Watch HVAC/R training videos and Quick Tip videos provided by Yellow Jacket tools.
Total Tech HVAC Training Center has some lab videos and subscription webinars.
Fluke- Articles, demos, videos and simulations.
Miscellaneous HVAC videos from GEA Consulting. Featuring clips on newer technology, compressor operations, important refrigerants, etc.
Nidec MotorPro Training - Register for free to go through three modules Motor Cross Referencing, Motor Mechanical Terminology, and Motor Efficiency.