I'd prefer the admin-created groups. I can see many uses for this - tagging people who have authority to approve certain things, people with an interest in certain topics, people in a certain subcommittee, etc.
Customer support service by UserEcho
I'd prefer the admin-created groups. I can see many uses for this - tagging people who have authority to approve certain things, people with an interest in certain topics, people in a certain subcommittee, etc.