Public: Anyone can join this group. Anyone can see all group information including threads, articles, polls, and photos.
Private: Administrative approval is required for new members to join. No one may join without your invitation or approval. Anyone can see the group information, but only group members will be able to see the group's threads, articles, polls, and photos.
Secret: The group will not appear in search results or in the profiles of its members. Only members you send invitations to may join this group and only members can see the group information including threads, articles, polls, and photos.
