American Memory Collection Finder Library of Congress
Each link on this page "retrieves a list of American Memory online collections. From that list, you will be able to jump to an individual collection or search for items in those collections. You can also browse a list of Subject Headings that further describe the chief areas of content in our collections. Go to Finder Help for more information." Covers American History and Culture from 1400s to present in many subject areas. Excellent source of images and sound files.
Coverage: 1400s - presentMy Library