Architecturefarm : "Architecture and the ivory tower in the great Midwest."
Arts of the United States. Includes architecture. Photography of the buildings was executed in the mid 20th century.
Blueprint: Chicago. Essays on Chicago architecture.
Calisphere: Images relating to California from California institutions.
Calisphere: Images specifically from the Panama Pacific International Exposition of 1915.
CAUSEWAY. The Collaborative Architecture, Urbanism, and Sustainability Web Archive. Initiative launched by art and architecture librarians at a number of universities and colleges to archive websites devoted to the above named topics.
Changing Face of Southern California. Postcard collections from Loyola Marymount University.
Chicago Architecture Data. "Photos and information on thousands of buildings, categorized by style and community area."
Chicago Architecture Info: Guide to information about historical and current architecture in the city.
Chicago History Museum: Architecture and Building History resources.
Chicago Landmarks. "The City of Chicago's Official Site."
Cinema Treasures: "Your guide to movie theaters."
The Department Store Museum. Online museum of North America's independent department stores.
DesignInform: Internet sources for biographical information on architects and other people in the arts.
Documenting Modern Living: Digitizing the Miller House and Garden Collection. Ongoing digitization project concerning materials relating to Eero Saarinen designed house in Columbus, Indiana.
Eames Designs: A Virtual Encyclopedia of All Things Eames.
Edgar A. Tafel Archive at the Avery Architectural & Fine Arts Library: Blog about the processing of the collection.
Everything I Know: "42 Hours of Buckminster Fuller's Visionary Lectures Free Online (1975)."
Fort Moultrie May 1860: 3-D digital recreation of the remnants of the 200-year-old Fort Moultrie in Charleston Harbor, South Carolina. Includes pages on history, architecture, and weaponry of the fort, a glossary, videos, and digitized photos and prints.
Gottscho-Schleisner Collection: Architecture and Interior Design for 20th Century America. Library of Congress American Memory Project.
Historic American Buildings Survey at Library of Congress. Buildings grouped by category.
Historic American Buildings Survey at Library of Congress. Search interface. For plans, search on a specific building, then check the Surveys Only box.
Historic Detroit.org : An excellent resource for buildings in Detroit, both extant and demolished.
Historic Preservation Libguide at the University of Pittsburgh. Although created for students at Pittsburgh, the list of resources is still helpful to anyone researching in this field.
Pacific Coast Architecture Database. Contains basic information about individual buildings on the West Coast.
Percival Gallagher Papers, Indianapolis Museum of Art. Finding aid to the papers of prominent landscape architect and partner in Olmsted Brothers firm.
Ryerson & Burnham Archive at Art Institute of Chicago. Collections strong in 19th and 20th century American architecture.
Ryerson & Burnham Archives: Archival Image Collection. Digital images from all the collections, including important Chicago architects' papers and drawings, World's Fairs material, and artist's papers.
Seaside Research Portal at the University of Notre Dame. "Archiving the First New Urban Community."
Special Collections Research Center at Syracuse University: Architecture and Industrial Design. Includes papers of Pietro Belluschi, Marcel Breuer, William Lescaze, Richard J. Neutra, Werner Seligmann, Dwight James Baum, Russel Wright, William Dorwin Teague, The Industrial Designers Society of America Records and more.
United States Geological Survey Topographic Map Explorer. Includes maps going back to 1884, can be used to track city growth.
University of Virginia Visual History Collection ca. 1825 to present. From the Digital Public Library of America.
World's Columbian Exposition, Chicago, 1893: The Architects and their Buildings.