How can I tell if an image is protected by copyright?

Visit these tools to explore whether images you find online are copyright protected and whether your use is fair use:

• Digital Slider, from the American Library Association.
• Copyright Genie, from the American Library Association.
• Fair Use Evaluator, from the American Library Association.
• Can I Use that Picture? The Terms, Laws, and Ethics for Using Copyrighted Images, from Curtis Newbold

If you are unsure, you can look for copyright and media use guidelines on the related site. For instance, NASA has posted guidelines on Using NASA Imagery and Linking to NASA Web Sites, and the U.S. government has posted this explanation of Copyright and Other Rights Pertaining to U.S. Government Works.