A Creative Commons License is a special form of copyright license that is used by creators to indicate that the public may use, share, and sometimes even build upon their work. For more information, take a look at the Creative Commons Website.
There are several kinds of CC License, some of which are more restrictive than others. Because of this, it is important to review the terms of the license for any image that you want to use. Keep in mind that if you plan to alter an image in any way (include it in a video, for instance, or modify it using Photoshop) the license must be one that allows you to make derivatives. You can find more information about the various CC Licenses here.
CC Search offers easy access to search services provided by other organizations - such as Google Images, Flickr, and Fotopedia. You should always examine the information that accompanies the images you find to verify that they are in fact licensed under Creative Commons.
A collection of freely usable media files to which anyone can contribute. You should always examine the information that accompanies the images you find to verify that they are in fact in the public domain or licensed under Creative Commons.
Use this page to search and browse images on Flickr that have been licensed under Creative Commons. Select "See More" after the name of the license, and then use the search box to find images with that license.
Using the Advanced Search on Google Images, you can limit your search to find images that are free to use and share on the open web.
NOTE: If you do not use the advanced search limiter, most images that you find using Google are NOT copyright free. You should always examine the information that accompanies the images you find to verify that they are in fact in the public domain or licensed under Creative Commons.
Images of the universe, our planet, and astronauts created by NASA and available through the Internet Archive. Images are generally copyright free (for the few exceptions, read the "terms" section of the website).
The digital image repository of the National Gallery of Art allows you to search, browse, share, and download images from the museum collection. Any image available for download is freely available to use.
On this website, you can find free stock photos and clip art. NOTE: this site contains images that do have copyright restrictions. You must read and abide by the Image License and Usage Terms listed on the photo download page.
In this video, you will learn how to find images with Creative Commons Licenses on Flickr. The video was created by Justin Unrau, a graduate student at the School of Library Archival and Information Studies at the University of British Columbia.
This video, produced by Whatcom Community College (Bellingham, WA), takes you through the steps of using search.creativecommons.org to search Google Images. NOTE: This video should help you to perform most searches using the Creative Commons search portal, not just the Google Images search.