What materials may be used freely without copyright permission?

One may use information that follows the fair use factors.


What is the good faith fair use defense?

This defense applies only if the person who copied the material, reasonably believed that what he or she did was a fair use.


What are the four fair use factors?

1.    What is the character of the use?

2.    What is the nature of the work to be used?

3.    How much of the work will you use?

4.    What effect would this use have on the market for the original or for permissions if the use were widespread?


Copyright Tutorial (Copyright Crash Course)  http://www.lib.utsystem.edu/copyright/