This is a newsletter draft.
A monthly newsletter would help members to feel a part of the group. It will be a way to advertise events, request help with projects, etc., forward general information which may be of use to members, etc.
A monthly newsletter would by default be sent out to all members and maybe non-members too. This would help potential members to get a better idea of what is happening in the group. It might even benefit potential supporters of the group.