National

  Advisory Council on Historic Preservation – Advises the President and Congress on national historic preservation policy.  Site includes information on the National Historic Preservation Program and federal Section 106 process.
  Cyburbia  Site for urban planners and others interested in cities and the built environment/ Contains a selective directory of Internet resources relevant to planning and urbanism.
  DOCOMOMO-US – Dedicated to the study of significant works of Modern Movement architecture, landscape design and urban planning in the U.S.
  Historic American Buildings Survey/Historic American Engineering Record  Documents important architectural, engineering and industrial sites throughout the United States and its territories.
  Historic Preservation Learning Portal – Quick and easy access to cultural resources information.
  League of Historic American Theatres – Dedicated to the restoration and operation of historic theatres in North America.
  National Alliance of Preservation Commissions (NAPC) – Facilitates local preservation commissions in providing information and education to each other.
  National Association of Tribal Historic Preservation Officers – National nonprofit comprised of Tribal Historic Preservation Officers and associate member tribes to support the preservation, maintenance and revitalization of the culture and tradition of native peoples of the U.S.
  National Center for Preservation Technology and Training – Advances the use of technology in the field of historic preservation including archaeology, architecture, landscape architecture and materials conservation.  The Center accomplishes its mission through training, education, research, technology transfer and partnerships.
  National Main Street Center – National Main Street Center of the National Trust for Historic Preservation.
  National Park Service – For information about grants, federal tax credits, tools for teaching, tours, laws, regulations and other federal assistance.
  National Trust for Historic Preservation – National non-profit historic preservation organization. The Washington Trust is a Statewide Partner of the National Trust.
  National Trust for Historic Preservation Library Collection – National resources for the study of historic preservation.
  Partners for Sacred Places – National non-sectarian, non-profit organization devoted to helping congregations and their communities sustain and actively use older and historic sacred places.
  Preservation Action – National lobbying organization for historic preservation.
  Preservation Directory – Online resource for historic preservation, building restoration and cultural resource management in the United States & Canada.
  Preservation Magazine – The online magazine of the National Trust for Historic Preservation. 
  PreserveNet – Designed to provide preservationists with a comprehensive database of regularly updated Internet resources and current professional opportunities.
  The Recent Past Preservation Network – Promoting preservation education and advocacy to encourage a contextual understanding of our modern built environment.
  Society of Architectural Historians – Encourages scholarly research in the field and promotes the preservation of significant architectural monuments that are an integral part of our worldwide historical and cultural heritage.
  Society for Commercial Archaeology – National organization devoted to the buildings, artifacts, structures, signs, and symbols of the 20th-century commercial landscape.

 

State

  Art Deco Northwest – A non-profit organization whose activities include information and action about preservation projects which support the preservation of buildings in the Pacific Northwest considered to be of the Art Deco Period.
  Docomomo WEWA (Documentation and Conservation of the Modern Movement, Western Washington) – A non-profit organization dedicated to raising awareness and appreciation of Modern design in Western Washington through education and advocacy.
  HistoryLink – Online encyclopedia of Washington State.
  Marion Dean Ross Chapter, Society of Architectural Historians – An affiliated regional chapter (encompassing the states of Washington, Oregon, and Idaho, USA and the province of British Columbia, Canada) of the international Society of Architectural Historians.
  Municipal Services Research Center of Washington – A non-profit organization whose mission is "working together for excellence in local government through professional consultation, research and information services."
  Tribal Historic Preservation Offices in Washington State
  University of Washington Department of Architecture & Historic Preservation Program – A certificate program within graduate programs of the College of Built Environments.
  Washington State Downtown Revitalization Program – Helping communities revitalize the economy, appearance, and image of their downtown commercial districts using the successful Main Street Approach™.  Click here for a list of, and links to, Washington's Main Street™ communities.
  Washington State Historical Society – State historical society and museum.
  Washington State Department of Archeology and Historic Preservation – For information about the National Register of Historic Places, Washington State Register, Special Valuation, Federal tax credits, and archaeology.

 

Local

Ellensburg
  Historic Ellensburg – Non-profit organization to protect and preserve the irreplaceable heritage of Ellensburg and the Kittitas Valley.
 
Everett
  Historic Everett – Non-profit organization to preserve the heritage of the City of Everett through advocacy, education, and preservation.
 
Port Townsend
  Jefferson County Historical Society – Society and museum to actively discover, collect, preserve, and promote the heritage of Jefferson County.
 
Seattle / King County
  4 Culture – Cultural Development Authority of King County
  Association of King County Historical Organizations (AKCHO) – The leading proponent and forum for addressing heritage issues at the local and county levels.  Download a copy of the AKCHART, The At-A-Glance King County Historical Association's Resource Table (PDF FIle).
  AIA Seattle – American Institute of Architects, Seattle chapter
  Historic Seattle – Non-profit membership organization dedicated to preserving the architectural past for the benefit of the future in Seattle and King County.
  HistoryLink – Online encyclopedia of Seattle and King County.
  Museum of History and Industry (MOHAI) – Museum of History & Industry sponsoring hands-on activities, exhibits, and 1.5 million historic photos of Seattle and King County since 1850.
 
Seattle Architecture Foundation – Tours, activities, and exhibits building public appreciation of architecture and design in the Northwest.
 
Snohomish County
  League of Snohomish County Heritage Organizations
 
Spokane
  Spokane Preservation Advocates – Spokane County's hands-on non profit organization for historic preservation.
  Spokane City/County Historic Preservation Office – The Spokane City/County Historic Preservation Office and the Spokane Historic Landmarks Commission are local government programs that share responsibility for the stewardship of historic and architecturally significant properties within the City of Spokane and unincorporated areas of Spokane County.
 
Tacoma
  City of Tacoma Historic Preservation Program – Tacoma's Historic Preservation Office supports the Landmarks Preservation Commission by reviewing landmark nominations and applications for changes to historic landmarks; assists the public and other government agencies with historic preservation issues; and develops programming and events to demonstrate Tacoma's unique history and culture.
  Historic Tacoma – Tacoma's non-profit historic preservation organization dedicated to preserving Tacoma's architectural legacy through education and advocacy.