Author's Rights, Tout de Suite
This is a very clear, straightforward document aimed at authors that outlines some of the basics of authors' rights. Bailey includes discussions of publisher agreements, copyright addenda, publishing in open access journals, and self-archiving, as well as several resources.
Bailey, Charles W. Jr., "Author's Rights, Tout de Suite" (2008). Research on Institutional Repositories: Articles and Presentations. Paper 51.