Consumersearch.com: Air Conditioners
- The site identifies which products reviewers like and dislike, where they agree or disagree, and why.
- http://www.consumersearch.com/www/house_and_home/air-conditioner-reviews/

Heating and Air Conditioning Buying Tips
- From a sales site, consumer information on buying heating and air conditioning and on hiring a contractor for installation.
- http://superior-air.com/buying_tips.htm

HVAC Mechanic.com
- Information and support on heating, ventilation and air conditioning systems or controls for home owners and professionals. Knowledge base, recalls, forum, glossary, and events.
- http://www.hvacmechanic.com

Refrigerant-22 Phaseout
- EPA site with homeowner information for consideration when purchasing or repairing a residential system or heat pump.
- http://www.epa.gov/ozone/title6/phaseout/22phaseout.html

SoYouWannaBuy.com: Air Conditioner
- Step-by-step instructions on how to buy an air conditioner.
- http://www.soyouwanna.com/site/syws/aircond/aircond.html

HowStuffWorks: Air Conditioners
- Describes air conditioning from window units up to large industrial applications.
- http://www.howstuffworks.com/ac.htm

Carrier
- Brand name product site. In addition to Carrier information, also has pages with consumer information such as what size air conditioners to buy for both home and industrial use.
- http://www.global.carrier.com/

Warmair.com: Cooling Topics and Tools
- Extensive information on all aspects and variations of cooling, air conditioning, including consumer information on how these appliances work and what to look for.
- http://www.warmair.com/html/cooling.htm

Epinions: Air Conditioners
- Consumer reviews, price information, related appliances, buying tips and advice, ratings.
- http://www.epinions.com/hmgd-Large_Appliances-All-Air_Conditioners

eBuyingGuides: Window Air Conditioning
- How to buy a room air conditioner.
- http://www.ebuyingguides.com/how/WinAC2_H.htm