National Wood Flooring Association - http://www.woodfloors.org/
Homepage of the National Wood Flooring Association.  A great resource for information on hardwood floors.

Hardwood Information Center - http://www.hardwood.org/
Web page sponsored by the Hardwood Manufactures Association.  Another good resource for wood floors, cabinetry, and furniture.

Hardwood Handbook - http://www.hardwoodhandbook.org/
Web page sponsored by the Southern Lumber Manufactures Association.  It provides information concerning hardwood lumber and its uses.