AHR EXPO
Air-Conditioning, Heating, Refrigerating Exposition. Includes registration, attendee and exhibitor information.
http://www.ahrexpo.com/
ARI CoolNet
The Air-Conditioning and Refrigeration Institute (ARI) is the national trade association representing manufacturers of U.S.-produced air-conditioning equipment.
http://www.ari.org/
Efficient Windows Collaborative
Provides unbiased information on the benefits of energy-efficient windows, descriptions of how they work, and recommendations for their selection and use.
http://www.efficientwindows.org/
Federal Business Opportunities
Official federal government procurement opportunities allowing contractors to retrieve services posted by government buyers.
http://www.fedbizopps.gov/
National Association of Home Builders (NAHB)
Trade association that helps promote the policies that make housing a national priority within the United States. Offers resources, publications, news, events and research to the housing industry and the general public.
http://www.nahb.org/
ServiceMagic
Matches home owners to home improvement contractors and real estate agents to assist in residential repairs and construction.
http://www.servicemagic.com/
The Institution of Civil Engineers
UK-based international organisation with 80, 000 members ranging from professional civil engineers to students, a fifth of whom live outside the UK in some 140 countries.
http://www.ice.org.uk/
ToolBase Services
Housing industry resources and technical information on building products, materials, new technologies, business management, and housing systems.
http://www.toolbase.org/
