Bartleby.com: Booth Tarkington: Brief profile and the text of "The Magnificent Ambersons".
Booth Tarkington Papers, 1896-1979: Finding aid for this collection of manuscripts, mainly correspondence, at the Indiana Historical Society. Includes biographical sketch.
Booth Tarkington, 1869-1946: Biography of the author. His connection to the Kennebunkport, Maine, area. Maine photos. Links.
IMDb: Booth Tarkington: Films based on his books and stories.
Tarkington, Booth: Several texts online, including "Alice Adams," "The Gentleman from Indiana," and "The Magnificent Ambersons." Also some sound files. From Project Gutenberg.
Tarkington, [Newton] Booth: A look at the author's years at Princeton.