The links below are to digital image libraries that facilitate finding images that are either out of copyright, licensed for use, or have clear terms of use. Always check the image's copyright / terms of use before using.
Digital Public Library of America
DPLA connects people to the riches held within America’s libraries, archives, museums, and other cultural heritage institutions. All of the materials found through DPLA—photographs, books, maps, news footage, oral histories, personal letters, museum objects, artwork, government documents, and so much more—are free and immediately available in digital format.
Europeana
Provides access to over 50 million digitized items
Flickr Commons
photos from institutions that want to share their digital collections. These tend to be historical images whose copyright has expired or government images that are automatically in the public domain since taxpayers have technically already paid for them.
Google Images Advanced Search
For copyright permissions, use the Usage Rights drop-down menu. Click the Usage Rights link for more information about the permissions of each category.
