My one girlfriend started a "wedding" chat on facebook invited all people who were invited into the group chat (which went on till the day of the wedding) and discussed all planning/traveling and just about anythign people had concerns or questions about. It was actually really helpfull. She also made one for bridesmaids only...we were from all over so it was hard for people to get together. It allowed us to post pictures keeping us on point with getting fittings ect. Its not the most formal way to do it but just about eveyone used it and was involved in the chats.