The best information on geothermal heating and cooling will come from your local heating and cooling professional, who will evaluate your situation and help determine what product is right for you. There are many websites that offer general information on geothermal heating and cooling as well, including Earth Comfort, Geo Comfort and Energy Star.
There are many sources of information on geothermal heating and cooling, but I would start here: http://en.wikipedia.org/wiki/Geothermal_heating You can also find videos about it on youtube.
Their are several websites that can help you find more information on Geothermal Heating and Cooling such as Wikipedia, energysavers.com and geoexchange.org.
One can find information on heating and cooling repair companies by looking in the local phone book. Most of the time there will be advertisements in the phone book and in the mail that offer these services.
If you are looking for information on buying a new heating and cooling system for your home I would visit: www.searshomeservices.com/central-heating-air/improve
You can visit www.lennox.com for excellent information on services. They provide the best when dealing with heating and cooling systems. All systems are energy efficient and can save you money in the long run.
type in google/bing heating and cooling facts.
You can find plenty of information about generators, if you go online and visit any of the heating and cooling websites. Walmart always has good reviews about their products.
British Gas has a website where they publish rates on gas and central heating. They also offer information on how to get a unit installed, and other options for heating and cooling your home.
Wikipedia have information on electric heating systems including the types of heating systems that are available. One can also find information on 'Which' including the costs and advantages of these heating systems.
Without knowing where you are located, I can answer generally but not specifically. Home Depot (located almost everywhere) specializes in heating and cooling systems starting as low as $299.
You can find good deals of AC with both heating and cooling functions by contacting local AC people. Most will give you free quotes so shop around for the best deal.
It all depends on what type of heating and cooling system you are looking for. You can go to www.bryant.com to get a general idea for getting heating and cooling systems, but a local company may be cheaper. You should also consider maybe an air conditioner and a space heater for the super cheap way.