I've been asked to come up with an interaction for a page where a 'space' can be created.
The space will have a name, image etc and an admin can assign users or groups of users to the space.
I see 'user'/'groups of users' as the same thing: they are just another object to be added to the space.
Now, the question: what's the best way to add these entities? I see it as being a bit like the WordPress 'Add tag' pattern but I've just realised this may make managing long lists difficult.
Anyone got any good patterns?