Make sure to check the copyright of each individual item to see if it needs attribution.
- Library of Congress American Memory
Includes over five million images, photographs, sound recordings, and other media that chronicle American history.
- New York Public Library Digital Collections
Includes over 700,000 historical prints, photographs, maps, and manuscripts spanning several eras.
Free photographs uploaded by a variety of amateurs and professionals for use by artists and teachers.
- LIFE Photo Archive
Photographs and images from LIFE magazine (many never published) going back to the 1850s.
- Creative Commons Search
Provides search engines to image, music and video collections that include content covered by the Creative Commons' licenses.
- CAMIO: Catlog of Art Images Online
Images of works of art from around the world, free for use for educational and research purposes.
- NASA on the Commons
NASA photos including pictures of and from aircraft and spacecraft.
A Duke University photo archive of over 7,000 advertisements that were printed in U.S. and Canadian magazines between 1911 and 1955.
- Astronaut Photography of Earth
Hosted by NASA.
- Public Domain Archive