I’ve been playing with Tribe.net for almost 3 weeks now, and I really like it. I’ve slowly been inviting friends to it, creating and joining tribes and getting used to it. It conceivably could be a substitute for those mass mailings or personal mailing lists. We once had one with 60 people on it, and we’d send itineraries, holiday wishes, change of addresses to it, etc. With tribes,if all your friends were on it, you could do the same thing by posting an announcement and restricting it to only the people within 0 or 1 degree of you. It would be easy to manage your itineraries, keep up with people, and arrange functions and meetups. It’s only as good as your network, though. The first week, when my network was 3 people it wasn’t much fun. Now that I have 9 direct friends (8 of whom I have known for at least 5 years, only one I met through Tribe) and a sizable network, it is much more fun. Anyone who wants to join the WREK tribe or the Chuck Palahniuk tribe is welcome to come and join our party.