Harper's Weekly has a site on Presidential Elections as Depicted in Political Cartoons, 1860-1912. Stanford University Libraries have various resources for research on political cartoons. They include:
- Reference books, such as Editorial Cartooning and Caricature: A Reference Guide
- Anthologies, such as Graphic Opinions: Editorial Cartoonists and Their Art
- Full-length studies, such as Drawn to Extremes: The Use and Abuse of Editorial Cartoons
- Historical Newspapers, such as such as Harper’s Weekly, New York Times Historical, and the Los Angeles Times Historical. For these and other newspapers see Newspaper Online.
- Databases, such as the Archive of Americanas Broadsides and Ephemera collection.
Other online sources include the Dirksen Congressional Center's Editorial Cartoons Collection. For information on the history of comic art as a whole, see also the Ohio State University Cartoon Research Library, the San Francisco Cartoon Art Museum, and the Virginia Commonwealth University Comic Arts Collection.
