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
- Main Street America
- National Historic Landmarks
- National Register of Historic Places
- National Trust for Historic Preservation
- National Park Service Route 66 Corridor Preservation Program
- National Park Service Technical Preservation Services
- 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
- New Mexico Department of Cultural Affairs
- Historical Society of New Mexico
- New Mexico Municipal League
- 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
- Site Steward Foundation, Inc.