I could't tell if this was asked here already, but please forgive any redundancy. In Blackboard, we have a wide use of Organizations (Basically shells which are not associated with courses or enrollments in the SIS). These are used for study groups, video repositories, faculty groups, clubs, etc.
So the question is, what have you found to be the Canvas equivalent to these? Is it simply a matter of creating a course that's moderated by someone with a teacher role?