Library of Congress Digital CollectionsAmerican history, 1400-present, documented by the Library of Congress. Millions of items: written & spoken words, audio, video, images, maps, sheet music, etc.
Americas ArchiveBrings together key political and cultural documents representing a multilingual “America” that includes Canada, the Caribbean, and Latin America from the beginning of colonization to the present. (Rice Univ.)
FBI Records: The VaultFBI documents on diverse topics ranging from gangsters and organized crime, World War II, and Vietnam to Civil Rights, counterterrorism, popular culture, and much more. Note: the dates listed beside each file generally represent when it was put online, not when it was created.