Quoting Scot Jenkins <jenkins at nospam.visi.com>: > try phpgroupware > > http://www.phpgroupware.org/ > > time consuming to setup but well worth it. The shared calendars are > awesome. There's also the Horde project http://www.horde.org/ > The Horde project is really nice and easy to use web based system. They have a pretty stable email/address book app, but i think the calender and task management systems are still in early development. Then you wouldn't have to use outlook either.... Jason