http://fairuse.stanford.edu/Copyright_and_Fair_Use_Overview/chapter0/index.html

Creative Commons licenses provide a flexible range of protections and freedoms for authors, artists and educators.

Offers clear explanations of the various issues involved in copyright, fair use and related copyright issues for multimedia and the web.

Links to full text of copyright law, Congressional discussions on copyright revision and numerous files on specific or technical topics related to copyright.

Stanford University's guidelines on Fair Use, coupled with specific information (see the links at the bottom of their page) for multimedia projects

Missouri has "very significant" levels of plagiarism according to these folks. The goal of this site, and its companion Turnitin.org, is to stop digital plagiarism. A subscription plagiarism detection service (offering a free trial) that checks papers against a database and renders an "originality report", complete with source links for suspect text.