iCal - share your events with your friends and see your friend's calendars.
MenuCalendarClock iCal gives you instant access to your iCal calendars from a menu bar icon.
Quickly remove useless data from iCal.
Add-in to iCal that gives the user options for how replies to meeting invites that are sent with Mail are dealt with.
Built to sync events from iCal calendars between more Mac computers.
