By default a group is private. The following steps detail how to make a group public. There are three settings within the basic permissions that will allow your group to be public. They are: View Topics, Post, and Join the group. These instructions assume that you have already created a group.
Set the basic permissions.
View Topics - this setting determines who can see the web version of your group. If you want this part to be public: 1. Click the View Topics drop-down and select, “Public.”
Post - this setting determines who can create messages and interact with your group. Opening posting to the public may invite spam. If you want this part to be public: 1. Click the Post drop-down and select, “Public.”
Join the Group - this setting determines who is allowed to join your group. Opening this to the public may invite spam. If you want this part to be public: 1. Click the Join the Group drop-down and select, “Public.”
Once you are satisfied with the group settings and have not previously done so, click the red Create button at the top of the screen.