The PDInfo web site is no longer reachable at the ne1.bright.net URL. It can still be reached at

http://www.bright.net/~pdfino/pdm2index.html

Other copyright-related sites you might find interesting are

http://www.public.asu.edu/~dkarjala http://www.ncte.org/cccc/cccc-ip/ http://www.elca.org/afp/house/copyrit.html http://www.cni.org/Hforums/cni-copyright