http://blogwww.readwriteweb.com/archives/digital_image_resources_on_the_deep_web.php
This article describes “some of the visual resources available on the web. The deep web. These images won’t show up in search engines’ image searches or on Flickr (save one exception). … The images are a part of online collections created by institutions in the U.S. Some of the images may be a part of the public domain, but many will require permission or accreditation in order to use.” From ReadWriteWeb.
source: LII
