Yes. Posting something on your own website means you are making the work available world-wide. Wide distribution tends towards the conclusion that the dealing is not “fair” and such uses may not be covered by any University licences. By contrast, Waterloo's learning management systems (LEARN) is a password protected, secure website accessible only by students enrolled in university courses. In some cases, posting material on LEARN will be covered by one of the University’s electronic subscriptions. The key thing to remember is just because you may post a copyright-protected work to LEARN doesn’t mean you have permission to post the work on your own personal website.