The Agricultural Research Service (ARS) is the U.S. Department of Agriculture’s chief scientific research agency.
The Image Gallery is provided as a complimentary source of high quality digital photographs available from the Agricultural Research Service Information Staff. The site offer images with web images at three resolutions and high resolution for print images.
The National Park Services Digital Image Archives site provides links to public domain digital images of a variety of sites, including national parks, monuments, historic sites, and so on. All images posted on this site are free, and may be used without a copyright release (however, photo credit should go to the National Park Service). Most of the images can be downloaded in various formats and resolutions, including print resolution. The maximum image size will print at 10.24 x 6.827 at 300 dpi. Keep in mind that a lower print resolution, such as 150 dpi, can often work better than a higher one when printing on fabric.
There are over 600,000 images in The New York Public Library Digital Gallery! The Gallery helps to fulfill the “traditional goal” of The Library “to select, collect, preserve and make accessible the accumulated wisdom of the world, without distinction as to income, religion, nationality, or other human condition.” The Gallery offers “digital images of drawings, illuminated manuscripts, maps, photographs, posters, prints, rare illustrated books, and more.
While the site explains that images an be freely downloaded for personal, research, and study purposes only, their User’s Guide includes detailed information on their terms for commercial use. In part: “As the physical rights holder of this material, most of which is in the public domain for copyright purposes, the Library charges a usage fee to license an image for commercial use.”
The collection include images relating to applied sciences, fine and decorative arts, history, performing arts, and social sciences and include drawings, illuminated manuscripts, maps, photographs, posters, prints, rare illustrated books, and so on.
