Using Images Legally
The sources below provide free-to-use images for educational purposes. Just remember to cite the author in your presentation or paper.
Search free-to-use images from Flickr, Google, Yahoo, blip.tv, and OWL Music Search.
Find Creative Commons, GNU, or open source licensed images. Select advanced search to access search options, such as limiting by license type, picture size, or shape.
Search images from over 35 million photographers.
Hosted by Flickr, this photostream includes over 2.6 million images taken from books published between 1500 to 1922. All images are copyright-free.
Find over 1.25 million archived prints and photographs.
Discover user contributed clip art that can be freely used.