We should link to the source materials where possible
We added a link to the saylor.org site: http://www.saylor.org/courses/arth101b, when we copied in the content to each page. For example, see first entry here. Are you suggesting we add a link to this page as well? Maybe it would be useful to add this to the OERu copyright template.
Probably you already know this, the Washington State Colleges content is inside an LMS. If needed, we could provide the link and then instructions for how to access it.