A group of scholars and academic librarians associated with the American Library Association's Office for Information Technology Policy. Excellent source for tools to help you keep within copyright laws and keep up to date on copyright discussions.
From the Copyright Advisory Network associated with the American Library Association. Online tool to help you determine if your material is in the public domain.
Section 108 of the U.S. Copyright Code allows libraries and archives, under certain circumstances, to make reproductions of copyrighted materials without the permission of the copyright holder.