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Usage Permission

Resources to Guide the Process of Obtaining Usage Permission 

Copyright Advisory Office of Columbia University: 

http://copyright.columbia.edu/copyright/permissions/

Columbia University, formed the Copyright Advisory Office (CAO). This office combines the research, teachings, and services created by university faculty. Its purpose is to address in an innovative, creative, and pragmatic manner the relationship between copyright law and the work of the university community.

Columbia University site concerning denied usage requests:
http://copyright.columbia.edu/copyright/permissions/if-you-cannot-find-the-owner/

Dealing with a dead end? You may not be able to identify or locate a copyright owner, or you may be frustrated because you have not received a response from a copyright owner. Helpful advice and alternatives are provided at this link.

Database of Copyright Licenses 

Copyright Clearance Center (CCC):
http://www.copyright.com/

The Copyright Clearance Center is a provider of copyright licensing systems and compliance solutions. The Copyright Clearance Center represents authors, publishers, and other owners of copyright-protected information. Their goal is to provide a single source for licensed access to copyrighted works. At this site you can learn about Pay-Per-Use Services which includes their academic permission service (APS), electronic course content service, transactional reporting service, digital permission service, and republication licensing service. You can also access Academic FAQ’s.