Mixed MediaSites and engines with all types of media. Free and Commercial.
Boston U Libraries A web page by Ruth S. Thomas, Art/Art History Bibliographer
on how to find images on the web.
PhotographicLibraries.com This site includes a wealth of links for: stock images; archive collections; moving images; graphics; clip art and more.
You are responsible for obeying copyright laws and any conditions stated on the sites that you access.