Royalty free copyright entitles use of material without paying royalties or fees for each use. Essentially, Royalty Free is NOT free. Royalty free licensing may require a one time fee and may either limit the use of the works OR permit liberal access, such as repeated use of content, no time limits, distributed different ways (i.e., web, print, etc).
It is important to read and follow the terms and conditions of the licensing agreement.
The Higher Education Opportunity Act requires all colleges and universities to offer legal alternatives to unauthorized downloading.
Some of the sites listed below provide some or all content at no charge; they are funded by advertising or represent artists who want their material distributed for free, or for other reasons:
A reverse image search allows you to:
The following sites contain media (videos, photos, etc.) that are covered under Creative Commons license.
Simply search for resource and review the Creative Commons license within context with your usage needs.