USA.gov (U.S. Government Search Engine)This site can be used to search for information on a specific topic developed by U.S. Government agencies. It is also possible to narrow the search results to a type of resource, such as images. Government publications, including photos in government publications, and photos taken by government employees are not copyrighted, so they can be used in presentations, but remember to cite your source! To find images, search for a topic (e.g. Black Footed Ferret) and then narrow the search results by choosing to view only images.