Keep your friends and family in the loop. With a .Mac account (or your own WebDAV server), iCal lets you publish your calendar on the Internet so others can see when you’re available. And if they’re iCal users themselves, they can subscribe to your calendars. iCal is perfect for maintaining school calendars, days off, breaks and sports events, not to mention class schedules, homework, activities and office hours. iCal is also great for enabling dozens of subscribers in youth groups, scout troops, sports clubs and fan clubs stay informed about scheduled group activities in their organizations.