In the wake of the recent Google Books Amended Settlement Agreement ruling, the orphan works problem has once again come front and center. Below are four reports and one Congressional hearing on the issue that may be worth revisiting.
Korn, Naomi. In from the Cold: An Assessment of the Scope of "Orphan Works" and Its Impact on the Delivery of Services to the Public. London: JISC, 2009.
Ricolfi, Marco et al. Final Report on Digital Preservation, Orphan Works, and Out-of-Print Works. Luxembourg: European Commission, Information Society and Media DG, Access to Information Unit, 2008.
United States Copyright Office. Report on Orphan Works. Washington, DC: United States Copyright Office, 2006.
U.S. Congress, House. Promoting the Use of Orphan Works: Balancing the Interests of Copyright Owners and Users, Hearing before the Subcommittee on Courts, the Internet, and Intellectual Property of the Committee on the Judiciary, 110 Congress, 2008.
Vuopala, Anna Assessment of the Orphan Works Issue and Costs for Rights Clearance. Luxembourg: European Commission, Information Society and Media DG, Access to Information Unit, 2010.