Below are links to useful web sites:

American Builders Network
http://www.americanbuilders.com

Association of Commercial Real Estate
http://www.acre.org

Build.com
http://www.build.com

Builders Network
http://www.abuildnet.com

Builder Online
http://www.builderonline.com

BuildingOnline
http://www.buildingonline.com

Dirt Lawyer
http://www.dirtlawyer.com

First Source Online
http://www.firstsourceonl.com

National Association of Home Builders
http://www.nahb.org

National Association of Industrial and Office Properties
http://www.naiop.org

The U.S. Green Building Council
http://www.usgbc.org