Aircondition.Com

Dedicated exclusively to automotive air conditioning. This Site includes discussion forums, industry related news, downloadable bulletins, information on alternative refrigerants and E-mail from the Environmental Protection Agency.
http://www.aircondition.com

Understanding Your A/C System

Basic component descriptions to help you better understand your air conditioning system.
http://www.familycar.com/ac1.htm

Heavy Duty Equipment Repair

Informational tips, conversion data, and a helpful bulletin board. For service technicians in the field of heavy duty equipment repair including tractors.
http://www.hdair.com/

HVAC 2000

Collection of conversion charts and reference diagrams for heating, air conditioning, and ventilation technicians.
http://www.hvac2000.com

Jbabs Do It Yourself A/C Repair

Drive more comfortably by doing it yourself. Includes how to change over from R-12 to R-134 freon.
http://members.tripod.com/~jbabs714/autoac.htm

Automotive A/C and Cooling Systems

Cooling and A/C systems, fuel and heating systems. Informational site.
http://pennrad.com

Auto Air Basics

A few things to know about air conditioning theory of operation
http://members.tripod.com/acguy2/aircondi.htm

A/C Mobile

Automotive air condition diagnosis and service procedures.
http://autoacrepairs.com

Owen Automotive Diagnostic & Repair Centre

Full service garage located in Toronto specializing in diagnostics and repair of Asian and Domestic vehicles. Contact information provided.
http://www.owenautomotive.ca/

Bob's Auto and Home Air Condition Service and Repair

Offers service and repair to vehicles. Includes HVAC chat board.
http://www.angelfire.com/nj4/coolair/index.html