A private group to notify my friends when I'm starting up a server.

I will be using this group as a way to tell friends that I'm starting up a server without having to go to the trouble to pester each and every one of them individually.

If you're joining a Garry's Mod server, you'll need to subscribe to this collection before you get on:
http://steamcommunity.com/sharedfiles/filedetails/?id=110619526