The Evolution of the American Front Porch A study by Scott Cook with illustrations and a bibliography. Covers its origins, stylistic evolution, history and cultural significance.
The Lustron Connection Ron Allen presents a history, registry and photograph gallery of Lustron steel homes built in the US between 1949 and 1950 for returning servicemen.
World Heritage Sites in the United States The National Park Service and US/ICOMOS offer a list of sites of cultural and natural interest already nominated and waiting for review. Criteria for site nominations.