National Trust of Historic Preservation:
A private non-profit organization dedicated to saving historic places and revitalizing America's communities.

Advisory Council on Historic Preservation (ACHP):
Promoting the value and benefit of historic preservation and administering the preservation review process for Federal projects and programs.

National Register of Historic Places:
Authorized under the National Historic Preservation Act of 1966, the National Register is part of a national program to coordinate and support public and private efforts to identify, evaluate, and protect our nation's historic and archaeological resources.

Society for Historical Archaeology (SHA):
The official website of the SHA promoting the study of material remains of past societies that also left behind historical documentary evidence.

The Society for American Archaeology (SAA):
An international organization dedicated to the research, interpretation, and protection of the archaeological heritage of the Americas.

The American Cultural Resource Association (ACRA):
An organization designed to promote the professional, ethical, and business practices of the cultural resource industry, including all of its affiliated disciplines, for the benefit of the resources, the public, and the members of the association.