Library of Congress Prints & Photographs Online:
"The collections of the Prints & Photographs Division include photographs, fine and popular prints and drawings, posters, and architectural and engineering drawings. While international in scope, the collections are particularly rich in materials produced in, or documenting the history of, the United States and the lives, interests and achievements of the American people." Please check Rights and Permissions page.
"The NIH Image Bank contains images from the collections of the 27 Institutes and Centers that comprise the National Institutes of Health. Contents include general biomedical and science-related images, clinicians, computers, patient care-related images, microscopy images, and various exterior images."
"The Ad*Access Project, funded by the Duke Endowment "Library 2000" Fund, presents images and database information for over 7,000 advertisements printed in U.S. and Canadian newspapers and magazines between 1911 and 1955. Ad*Access concentrates on five main subject areas: Radio, Television, Transportation, Beauty and Hygiene, and World War II, providing a coherent view of a number of major campaigns and companies through images preserved in one particular advertising collection available at Duke University." Please, check Copyright and Citation permissions.
The Emergence of Advertising in America: 1850 - 1920:
"The Emergence of Advertising in America: 1850 - 1920 (EAA) presents over 9,000 images, with database information, relating to the early history of advertising in the United States. The materials, drawn from the David M. Rubenstein Rare Book & Manuscript Library at Duke University, provide a significant and informative perspective on the early evolution of this most ubiquitous feature of modern American business and culture." Please, check Copyright and Citation permissions.
Copyright Friendly Image Sources:
"Most of the images in the collections below include images with a variety of less restrictive licensing. Though students may not need to ask permission to use them when publishing on the Web for educational purposes, they should cite these images unless otherwise notified! Important: Any copyright notices on these pages, should be read carefully and heeded!"
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30+ Websites to Download Free Photos