Anchornews.com
The News
http://www.achrnews.com/
Air conditioning, Heating and Refrigeration News Online. Includes industry research, HVACR directory and source guide, industry links, manufacturer reports, regional reports, a learning center, and more

Bell & Gossett, ITT Industries
HVAC related links
http://www.bellgossett.com/hvaclinks.stm
Associations, directories, distributors, magazines, manufacturers, software & other sites

California energy commission
http://www.energy.ca.gov/efficiency/qualityhomes/procedures.html
California's procedures for HVAC system design and installation

Carrier
http://www.global.carrier.com/generic/0,1238,CLI1_DIV28_ETI143,00.html
Information on residential systems, commercial and industrial systems, refrigeration and transport systems, industry partners, and commercial service

HVAC-Talk.com
http://www.hvac-talk.com/gindex.asp
HVAC forum, jobs, and other information

Information for HVAC Professionals
http://home.att.net/~alt.hvac/pros.htm
Features include a list of HVAC acronyms; calculations, energy, and climatic data; organizations; properties of materials; safety in the workplace; information for the homeowner; relevant links; and more.

Oregon Department of Energy
Heating, Ventilation, and Air Conditioning
http://egov.oregon.gov/ENERGY/CONS/RES/tax/HVAC.shtml
Information concerning heating, ventilation, and air conditioning, including information for businesses, residents, industry, schools, government, and more.

ThomasNet
Industrial Search
http://www.thomasregister.com/
Search for source of product, company information, CAD drawings, and more; a comprehensive resource for industrial information