(Andre Engels engels@uni-koblenz.de): On Tue, 4 Mar 2003, Lee Daniel Crocker wrote:
If you find such an image on wikipedia (i.e., one for which permission was granted only to wikipedia), it should probably be replaced if at all possible by a more freely usable one, either PD, or FDL licensed itself, or usable under "fair use".
Could I get some indication on when an image falls uner fair use, and when it does not?
It's very likely that just about any use of an image on Wikipedia would fall under fair use. The only ones likely to fail that test are things like drawings made specifically for technical articles that are under copyright.