Try these Library of Congress Subject Headings.
Limit the results to ebooks by clicking on the filter, Available online.
Material Culture -- United States
United States -- Civilization
Industries -- United States -- History
War Films -- History and Criticism
Art and Society -- United States
Vernacular Architecture -- United States
Web of Science: Globalizing American Studies as cited reference
The Cited References: How Do I Find Who Cited an Article or Book? Research Guide lists more sources, some by discipline.