Copyright and Digital Rights Management

Copyright and Preservation: a Serious Problem in Need of a Thoughtful Solution (CLIR Report, by Robert L. Oakley, 1990)
Copyright Implications of Digital Archives (presentation by Peter B. Hirtle at the AALL Annual Meeting, 2006)
Copyright Issues Relevant to the Creation of a Digital Archive: a Preliminary Assessment (CLIR Report, by June M. Besek, 2003)
Copyright Renewal Database (Stanford database that makes searchable the copyright renewal records received by the U.S. Copyright Office between 1950 and 1993 for books published in the U.S. between 1923 and 1963. )
Copyright Term and the Public Domain in the U.S. (chart by Peter B. Hirtle, 2006)
Creative Commons (nonprofit organization that offers flexible copyright licenses for creative works)
Digital Millennium Copyright Act
Green Paper: Copyright in the Knowledge Economy (European Commission, July 2008)
How Can I Tell Whether a Copyright was Renewed? (U. Penn., Online Books Page)
International Study on the Impact of Copyright Law on Digital Preservation (Joint report of JISC, NDIIPP, the OAK Law Project and the SURFfoundation July 2008)
Report on Digital Preservation, Orphan Works, and Out of Print Works - European Digital Library Initiative, High Level Expert Group, Copyright Subgroup (report approved 18 April 2007)

Report on Orphan Works (Report of the Register of Copyrights, 2006)
Section 108 Study Group (convened by Library of Congress)
SHERPA RoMEO (publisher copyright policies)
U.S. Copyright Office, Library of Congress
U.S. Copyright Search ("Search for copyright information about books, music, and other registered works.")
When U.S. Works Pass Into the Public Domain (by Lolly Gasaway)