New Google+ communities are restricted to the UMICH domain by default. Posts in these communities are only viewable by people within the UMICH domain. However, you can still choose to create communities with people outside of UMICH so clients, agencies or business partners can join in. You can also make your community open to anyone at UMICH or private, joinable by invitation only. Community owners can change settings, manage membership or invite other team members to join. Communities created prior to November 5, 2013 are unaffected and not restricted to the UMICH domain. For more information on domain-restricted Google+ communities, see Google's blog.