Great article and tips from LEARN NC on what creative commons licensing is and how to search for content.
Learn more about Creative Commons by reading this page and/or watching the 3-minute video, "Wanna work together?" that gives a great overview.
Fun video explaining how creative commons licenses work. Produced in New Zealand, but content is not specific to that country.
Detailed explanation of CC licenses - description for each type of license - allowing creators to license their works so it can be "copied, distributed, edited, remixed, and built upon, all within the boundaries of copyright law." Permission to use is granted through the creator's selection of the appropriate CC license that defines how the work may be used.
Slide show about creative commons licensing. Gives a quick overview of copyright and purpose of creative commons licenses and describes the requirements a creator may choose to apply via one of their licenses.
Remix of "Wanna work together" video from creativecommons.org
Longer video explaining how creators can license their work and others can use it under creative commons