This may also interest you:
Fox, M.A. & Ciro, T. (2005) The Emerging Legal Environment for Podcasting. Entertainment Law Review, 16(8): 215-223.
http://mypage.iusb.edu/~mfox1/publfox/podlaw.pdf [Published by: Sweet & Maxwell]
Abstract: Podcasting is a new form of distributing audio content over the Internet. By downloading audio content to portable MP3 players consumers can control when and where they listen to such content. Podcasting is an important development in the personalized media revolution, but also has implications for traditional radio stations and for individuals who wish to create podcasts. In this paper we discuss the most pertinent legal issues for podcasters.