hello all. following david silver's request, i'd like to point out three interesting mailing lists: http://www.cybergeography.org/register.html (cyber geography research bulletin by Martin Dodge, internet mapping specialist at the CASA, London.) http://www.cybergeography.org/discussion.html (the corresponding discussion list, moderated, low volume) http://www.infovis.net/MainPage.htm (newsletter on information visualization) have a nice day. max doelling