American Historical Print Collectors Society
http://www.ahpcs.org/

Antique Print Blog
http://antiqueprintsblog.blogspot.com/

Bauman Rare Books – Types of Bindings
http://www.baumanrarebooks.com/rare-book-collecting/types-of-bindings.aspx

BibliOdyssey: Books~~Illustrations~~Science~~History~~Visual Materia Obscura~~Eclectic Bookart. – Blog Archive
http://bibliodyssey.blogspot.com/

Bryn Mawr College Center for Visual Culture
http://www.brynmawr.edu/visualculture/

Center for Historic American Visual Culture, American Antiquarian Society
http://www.chavic.org/

Ephemera Society of America
http://www.ephemerasociety.org/

Graphics Atlas
http://www.graphicsatlas.org/

Greater Philadelphia Geo history Network
http://www.philageohistory.org/geohistory/index.cfm

Heilbrunn Timeline of Art History
http://www.metmuseum.org/toah/

Library of Congress – Teaching with Primary Sources: 2016 Photo Resource Guide
http://issuu.com/universityofthearts/docs/tps_v2_12_final

Media Commons
https://mediacommons.org/

Princeton – Graphic Arts – Blog Archive
https://graphicarts.princeton.edu/