I want to host ongoing group discussions on my site. How can I do this?
You can use the Forum module to organize group discussions on various topics. For a guide to setting this up, check out: http://www.groups-corp.com/wiki/item/using-the-forum-module
I want to appoint certain members as forum moderators, but don't want to give them access to admin authorities in other areas of my group. Is there a way to do this?
Yes, you can define specific powers for members by creating a new ‘role' in the Roles section of your admin panel. After creating a role, go to the User Management page and use the drop-down menu to change a member's status to the role of your choice.