Here at the University of Michigan, the Creative Commons (CC) approach to copyright — by which you articulate in advance how people can use your work — gets a lot of air time. But when traveling recently, I realized that CC might be new for some folks out there.
So if you’re new to CC, this video gives a good introduction:
http://www.youtube.com/watch?v=AeTlXtEOplA
You can find more videos about CC here.
Creative Commons-licensed music, video, audio, slideshows, photos, and more can be a stress-free way to get your students practicing good digital citizenship with robust and intriguing resources. So using CC stuff is one angle you can take.
But you can also choose to license your work under Creative Commons. In that case, Creative Commons has a new pick-a-license online worksheet worth checking out:
Cool stuff, legal to use. Good for your blood pressure, good for the community of creators. Have fun!