Creative Commons search page provides an easy way to search across various sites for Creative Commons-licensed images, video and audio. It’s a great way to start your search for openly licensed digital media.
Art and architecture images photographed by Allan Kohl.
Educational Technology Clearinghouse
Over 45,000 pieces of free clipart.
Browse or search through content under each type of license.
To use the usage rights filter option, select "advanced image search" on the main Google Images page.
This online collection provides access to about 7,000 different views and portraits made during the American Civil War (1861-1865) and its immediate aftermath
A repository for free public domain images.
Using Yahoo's image search tool, you can select filters to refine results to show only images that are licensed under Creative Commons.