Wikipedia users on the whole do not know much about U.S. copyright law, and are thus generally not very empowered to make reasoned decisions about whether something is "fair use" or not. This often leads to rather bitter arguments between users, which generally collapse as one party notes that the other is not a lawyer and thus not an authority on the topic.
It would be more ideal if there were easy, straightforward references which one could refer users on Wikipedia to which would explain the notion of copyright, "fair use", and their applications to Wikipedia in a manner which would not require any experience in legal reasoning or a large time commitment.
Below are just some ideas which interested users are encouraged to consider or even start. If a given idea is started, please create a subsection for it on this page.
Below are some links which might be useful in thinking about creating such projects. They are still probably a bit too technical for the average Wikipedia user, but the information in them could serve as an intellectual base on which to build upon.