Copyright
& Fair Use
From Stanford University.
Fair
Use of Copyrighted Materials
From the University of Texas.
Copyright
Law and Policy
From the United States Copyright Office.
The
Copyright Clearance Center, Inc.
"Established by authors, publishers and users as the not-for-profit Reproduction
Rights Organization (RRO) for the United States. CCC operates collective licensing
systems that facilitate compliance with the copyright law and promote the
Constitutional purposes of copyright, namely progress and creativity in the
arts and sciences."