For help in making a fair use evaluation, please see the links below. The Columbia checklist is a printable PDF, while the American Library Association's Evaluator walks you through creating a fair use document for your records. In the event of a lawsuit, having such a document may help you prove you made a good faith effort to comply with the fair use clause of U.S. Copyright Law.
Fair Use Evaluator
This tool provides useful language for describing proposed uses and creates a PDF that can be saved and printed for your records.
Columbia University Fair Use Checklist
This site gives some background on fair use, as well as a printable checklist.
Fair Use Index
A listing of fair use cases that have gone to trial and how they resolved (fair use, not fair use, mixed) in different areas, including scholarship and creative work.