Thanks Mary and Robert!. I haven't used 'Guest' for the two previous implementations--as they were both totally customer-facing systems--but because this new system is behind a firewall and it's for internal employees, I think this solution will work out perfectly.
I just turned on the Guest Enrollment plugin and then applied it as an enrollment method to each of two 'fake courses' (i.e., course 'placeholders' containing pdfs and other materials).
Then I logged in as another user, accessed the courses, looked at the resources, then checked the profile page and these two 'fake courses' are no longer displayed there. This is exactly how I had hoped it would work. Thanks!