This paper presents a guide to fair use, particularly use of new media in the classroom. It begins with a brief overview of the fair use doctrine and then presents guidelines for copying of printed materials, use of videotaped materials, and the use of multimedia (the last summarized from the Consortium of College and University Media Center's 1996 guidelines). Noting that communication departments sometimes have their own computer labs for use in teaching classes and for student and faculty projects, the paper also discusses site licenses and shareware computer programs. It concludes with a word about public domain and the limitations of copyright protection. Contains a chart reviewing time limitations and copyright law. (RS)