Magazine Art.org Scanned magazine covers from the period of 1850-1950.
Mid-Century in Print A Flickr image pool featuring
illustration, graphic layout styles, and typography from 1945-1965.
Pulp Artists
A site featuring biographies and images of pulp magazine illustrators from 1930 to 1960, when technical advances in color printing led to a golden era of pulp art.
Real Retro Source Includes reproductions of illustrations dating back to 1921 from the P&H Creative Group archive.
BookScans A visual catalog of vintage American paperbacks from roughly
the first 20 years of paperback-sized books; especially those printed before 1960 and/or having a 25 or 35-cent cover price.