Book clip art All clip art, about English and Language Arts, in Discovery Education's Clip Art Gallery created by Mark A. Hicks, illustrator. Teachers are allowed to download up to ten images if the follow the copyright directions.
A good website that provides free photos. The collection contains thousands of images that anyone can use for free in academic or commercial presentations. The image collection can be searched by subject category, image size, color, or rating. Morgue File is more than just a source for free images. It also features a "classroom" where visitors can learn photography techniques and get tips about image editing.
A kid-safe search engine powered by Google custom search. It uses a combination of Googles safe search mode and their own database of restricted elements. It also has a site removal request form if something does get past the filters
Free to use, the site provides high-quality, digital images that can be used by teachers and students. The only proviso seems to be that they can't be sold on. Find images by keyword of browsing.