Library of Congress
Loc: Cartoon Cornucopia: J. Arthur Wood, Jr., Collection
The Library of Congress offers a digitized collection of caricature, cartoon, and animated art. The collection is searchable and short histories of cartoonists, types of cartoons, and animation are included.
Smithsonian Institution
Smithsonian Libraries:drawing From Life: Caricatures and Cartoons
A website dedicated to displaying a selection of political cartoons and caricatures from the nineteenth and twentieth centuries. Includes biographies of many famous cartoonists and commentaries on the cartoonist's style and interests.
Library of Congress
Loc: Cartoon America
includes political illustrations, gag cartoons, Online collection that includes comic strips, illustrations, animation, and caricature.