Links to online photographic plate archives

DASCH - Digital Access to a Sky Century @ Harvard

APPLAUSE - Archives of Photographic PLates for Astronomical USE

Digital Plate Archives of Hamburg Observatory

Heidelberg Königstuhl Archives

Wide-Field Plate Database

University of Toronto David Dunlap Observatory plate log books - use the search term "David Dunlap Observatory log book"

Yerkes Observatory plate archive - Excel spreadsheets of various plate series

Carnegie Observatories plate archive search tool for Mt. Wilson, Palomar and Las Campanas plates

Ukrainian Database of joint plate archive (DBGPA V2.0)

KODA Kanzelhöhe Online Data Archive