I’ve started using Google Calendar today, and I’m as pleased with this calendar system as I’ve been pleased with any other system. You can import and export in both CSV and iCal standard format files, share calendars with other users on pre-defined privacy settings, have email reminders, invite other users to your appointments, and more.
This is a link to my ‘public’ iCal file. Alternatively, if you think I’d be happy for you to see my full private calendar, and you also use Google Calendar, log in to your Google account at http://google.com/calendar, search for my calendar (Tom Bammann) and lodge a request to me to gain full read-access to my calendar.