All the types of needs (volunteer and goods) have the same option when you post the need to choose WHERE you want the needs to show (on which websites).
Public – visible on the websites of other organizations that are a part of MTN (if they have not hidden your organization from their template)
Semi-Private – only visible on your website (anyone visiting your website can see the needs and log-in when they are ready to commit to a need)
Members Only – only visible on your website but approved members must log-in first to see the need (this status is meant for highly confidential needs/teams – i.e. letting a group of Deacons know that someone is in the hospital)