Fact Sheet on Fair Use from the U.S. Copyright Office.
Copyright and Fair Use Guidelines from the University of Maryland University College Library
Copyright Crash Course from the Univ. of Texas
Know Your Copy Rights (links to PDF of brochure on copyright for teaching faculty)
From the College Art Association
"The Code of Best Practices in Fair Use for the Visual Arts is based on a consensus of professionals in the visual arts who use copyrighted images, texts, and other materials in their creative and scholarly work and who, through discussion groups, identified best practices for using such materials."