I'm throwing my sister-in-laws baby shower in January. She sent me her list of people today and I was wondering if I should have her get their addresses to send out invites or if I should contact all of them via FB to get their addresses? I was going to go the route of sending the invites on FB or create a private event, but figured that's pretty tacky lol. So, should I contact them on FB and ask them or should she?