- AP Images - photos from the Associated Press, historic, contemporary, etc.
- Flickr.com - largest free image collection for scholars & public EXPLANATION
- ARTstor - not just art, but historic photos, buildings, popular culture; over 100,000 images
- Insight Visual Collections - High-quality image collections (not all available to the public)
- Duke Digital Collections - Duke's Special Collections' Library scans of advertising, historic photos, manuscripts, Women's Studies
- Wikipedia Public Domain Image Resources - a constantly evolving list of image sources of varying quality, organized by topic
- Cinema Image Gallery - pictures from movies, from Wilson web
Embedded Collections (image searching in journal databases)
- NEW! - Reanimation Library - copyright-free images and visual content from picture-intenisive books.
Commercial Collections (charge for use, but browsing is free)
- Corbis - Bill Gates' image fee-based image service; selected categories can be royalty-free
- Getty Images - a stock images service (generally for commerical purposes, not associated with the Getty Museum)
- Creative Commons (collections) Website