Biblioteca Nacional de Argentina, Colecciones Digitales (see "Fotografías" and "Videos")
Carteles: Cuban and Mexican Film Posters from the Efraín Barradas Collection (University of Florida Libraries)
Chilean Protest Murals (Harvard College Library)
Murals created during the dictatorship of General Augusto Pinochet (1973-1990).
Luso-Hispanic New World in Early Prints and Photographs (NYPL) A terrific collection, one example:
Cuban Photograph Collections (Cuban Heritage Collections, University of Miami)
Cuban Postcard Collection (Cuban Heritage Collections, University of Miami)
Deena Stryker Photographs, Cuba 1963-1964 and undated (Duke University)
Postcards of locations and events related to US military involvement in the Mexican Revolution.
Photographs related to the punitive expedition led by General Pershing into Mexico in 1916.