Online Photo Databases
 

I am curious what online photo databases you use to do research. I have several I look at (below) and am wondering if I am missing any.

Hall of Fame
Library of Congress
Harwell Collection
Getty
AP
Reuters
Google image search

Tineye

Detroit Public Library has a great resource for digital images, as does the Chicago History Museum:

https://digitalcollections.detroitpubliclibrary.org//
https://images.chicagohistory.org/

Spalding collection at NYPL.
Also I think Protoball is going to start an early image site with SABR. Not sure how to access or if it is fully up yet.
SABR is putting the Rucker collection online.