Digital Copyright slider

The Chronicle's Wired Campus blog has a post pointing readers to the "digital slide rule" developed by the American Library Association's Office for Information Technology Policy. Is a work in the public domain? Do you need permission to use it? When does copyright expire? Find the answers using the digital slider. This is a great tool for librarians, teachers, artists, students, researchers, attorneys and anyone who needs clear, concise information on copyright terms and conditions. The slider was created by Michael Brewer, a librarian at the University of Arizona and an OITP Copyright Advisory Committee member.