Located at the Library of Congress, the American Folklife Center contains collections of folk cultural material from all 50 states and the District of Columbia.  There are over 4,000 collections of images, sounds, written accounts, interviews, and more items of cultural documentation.  This site is rich in primary sources relating to American history.

The Library of Congress's American Memory site offers multimedia collections of digitized documents, photographs, sound recordings, motion pictures, and texts. It includes over 100 collections, including, for example, African-American pamphlets, Chautauqua flyers, Depression-era photographs, Coca-Cola advertising, and the papers of Alexander Graham Bell.

The Library of Congress Prints and Photographs Online Catalog is a searchable collection of over one million digital images representing a cross-section of still pictures held by the Prints & Photographs Division and, in some cases, other units of the Library of Congress.