Commercial and editorial photography and illustrations
Stock and editorial images including some royalty-free stock photos
"Explore museums from around the world, discover and view hundreds of artworks at incredible zoom levels, and even create and share your own collection of masterpieces."
Searches for images on the web and gives users the ability to either open the image only, or the page the image is found in. *Does not work with Internet Explorer.
Maintained by the University of Michigan
Register and upload images, use artistic software, participate in photobucket community.
"Search the web for images. An image search service with more than 3,000,000,000 pictures."
Zooomr allows one to register and upload images. Users may search Zooomr using keywords or browsing tags. Also, one may browse for images by geographical location.