When students use images, sounds, and movie clips from the web, they should cite the source and give full credit. There are some easy online tools to help create citations. BEFORE you have your students use one of the online tools, though, please try it yourself. The teacher needs to know what type of citation will be required (MLA, APA, etc). The site below is from the original "Citation Machine" done through the Landmark Project. The Oregon School Library Association now hosts two other "Citation Machines". I will post about these two as well.