An OOC interview of sorts, or even inviting someone that wants to apply into a group chat over AIM with whoever is online, would also be a way to make sure that their personality would mesh well with the group's, for a double check that someone who a player wants to invite wouldn't bring drama and backstabbing and all that lovely stuff into the group dynamic with them, it would be an added complication that would also make sure that anyone who sits through it really, really wants to join us. :) I think there are definitely ways that we can bring in new people without having to worry about it upsetting how the group's running.