National Sites
- Advisory Council on Historic Preservation
- American Cultural Resources Association
- Bureau of Land Management Patent Searches
- Certified Local Governments Information at the National Park Service
- Federal Writers' Project, 1936-1940
- Historic American Buildings Survey
- Lexis Legal Research Site
- National Historic Landmarks
- National Register of Historic Places
- National Trust for Historic Preservation
- National Trust for Historic Preservation's National Main Street Center
- National Park Service Route 66 Corridor Preservation Program
- National Park Service Technical Preservation Services
- Preservation Easement Trust, Inc.
- Secretary of the Interior's Standards for Rehabilitation & Illustrated Guidelines on Sustainability for Rehabilitating Historic Buildings
- Smithsonian's AnthroNotes, 1979-2012 - downloadable articles from the entire collection
- Society for Commercial Archeology
- Technical Preservation Services - web-based training for preservationists from the National Park Service
- Vernacular Architectural Forum
Sites About New Mexico and the Southwest
- Historic Silver City Waterworks
- New Mexico Department of Cultural Affairs
- New Mexico Heritage Preservation Alliance
- Historical Society of New Mexico
- New Mexico Historical Industrial Age
- New Mexico Municipal League
- Other State Historic Preservation Web Sites
- Route 66
- Santa Fe Trail Association
- El Camino Real de Tierra Adentro National Historic Trail
- New Mexico Office of State Historian
- New Mexico Genealogy Resources and Vital Records
- New Mexico Route 66 Association
- Palace of the Governors History Library
- Rio Grande Historical Collections
- Site Steward Foundation, Inc.
Other Sites
- Searchable database and a downloadable Access/Word application for doing national register nominations
- Society for American Archaeology
- Society for Historical Archaeology
- Southwestern Archaeology "Type Site"