National Center for Preservation Technology & Training
Office of NPS concerned with transfer of preservation technology. Lists a variety of preservation resources including databases, jobs, grants, conferences, and training programs.

National Historic Preservation Act
Full text of the 1966 Act established to help protect and preserve the nation's historic and cultural heritage.

National Park Service Historic Preservation
Provides extensive list of sources for expert advice and training related to historic preservation, including information on programs, grants, tax credits, and technical assistance.

National Register of Historic Places
Maintains a national register of districts, sites, buildings, and structures significant in American history, architecture, archeology, and culture.

National Trust for Historic Preservation
Provides leadership, education and advocacy in the area of historic preservation.

Vanishing Treasures Program
Grassroots initiative to save deteriorating structures that include selective National Park Service areas, National Historic Landmarks, and units listed on or eligible for the National Register of Historic Places.