For open discussions/forums, it's easy to know who you are sharing content with, as it will either be all anonymous users or all site members. For private discussions/forums, it's not obvious to site members who they are sharing content with. So for private discussion/forums, would it be possible to allow the site member to easily see who is a member of the private discussion/forum group ? Here's a mockup of it on the main forum listing, but it would just be for private forums. If the user clicked on the 'Members' text, it could show the discussion/forum group members. If it didn't go on the main forum display page, it could maybe go in the Members tab, showing a list of private groups that the user has access to and the private group members.