For an advisory or specialist with a CE appointment, copyright ownership is already settled. For anything you do that fits under "form of fixed expression" (text on paper or on screen, audio clip, data table or graph, etc) and that is a part of your program assignment, copyright is held by the Regents. That doesn't mean you don't have flexibility to use your work as you see fit. In most cases, it does mean that you don't have the authority to give the copyright away or to sell it. This includes Creative Commons, which seeks to provide easy ways to retain ownwership while providing multiple open licensing frameworks.
UC council is aware of Creative Commons, and there is a great deal of discussion and adaptation of this method in higher education and cooperative extension. Right now, the folks in Office of General Council have said no, but there is a sense that something akin to Creative Commons will be needed.
If you have copyright questions or comments, feel free to comment here or send me an email.
Bob

