In our profiles there is a block that says "group memberships" and underneath it will say "Nebula11 is not a member of any groups"..I havent found anyone who is and i was just wondering what that was all about.....
It's an option withing Vbulletin to have groups within a community. For example in a football related site, you could have groups based on the various teams, so that if you're a fan of a particular team you can join as a member of that group. I haven't really seen it used anywhere and it's not enabled here either.