http://neurotalk.psychcentral.com/fa..._social_groups

[Can I create my own social group?

As a registered member, you can create your own social group (providing the administrator allows this). Go to the groups page and click 'Create A New Group'. Complete the title and description for your group then select the type. There are three types of groups:

* Public - open to everyone. There is no restriction on who can join or who can post messages to it
* Invite Only - require an invitation to be sent to join them. Invitations can only be sent by the group creator or forum moderators and administrators. Invitations are sent by clicking 'Pending & Invited Members' at the bottom of the page for that individual group
* Moderated - open to everyone to join but messages need to be moderated before they will appear. They are moderated by the group creator and the site moderators and administrators]