A group can be set up however it wants to be.
There is a group being set up by Canadians. I would imagine the group's gift would have a Canadian theme/flare to it.
Same thing with the Non-North American group.
Nancy is spearheading a Disneyland Fan group.
Jen and Shelly each are leading groups of random DIS'ers.
So basically, whatever you want.
I know there are some people that have expressed interest in having a group or joining a group.
Maybe I'll start a group FE thread? If nothing else it might be easier for people that want to get in on a group to find....