The list below provides sites from which you can find sources for or create your own audio for the project you are creating.
The list of resources below will allow you to find images that you may re-use with proper attribution.
The list of sites below provide open licensed video that may be used in media projects.
This site offers free HD video clips "for creatives".
This is a collection of creative commons licensed videos.
As well as offering free to use images, Pixabay also offers free-to-use-video clips. From the site, "All images and videos on Pixabay are released free of copyrights under Creative Commons CC0. You may download, modify, distribute, and use them royalty free for anything you like, even in commercial applications. Attribution is not required."
Videezy.com offers HD stock footage.
This tab lists resources that do not nicely fall into a specific category.
Creative Commons (cc) licenses enable the owner of a work to allow another party to re-use, adapt, and re-create with their work. Different types of CC licenses allow for different levels of re-use. Regardless of the type of CC license you should always cite and/or attribute the work you use to the original creator.
Some licenses stipulate that a work may only be used in non-commercial settings. You can look at the license to find out how the work may be used. This article from the MakeUseOf blog describes what creative commons is and how and why to use it. If you have other questions about copyright, please see the Copyright tab