You should take a moment to step through the tutorial, but you can quick start to your calendar with this link: Default Calendar
iCal is a web-based calendar that you can use to show meetings, events,
or other activity. Your calendars can be viewed, edited, and administered totally
through the web. iCal is build for thin-clients, so you access your calendar without
any plug-ins or java interpreters.
There are many uses for iCal; you can post a calendar of your company's events on the Internet, create a conference room schedule within your company, University and k12 school activities, create a schedule for your family, make a personal schedule, or just about anything else.
iCal is versatile. You can change the colors and presentation of the calendar and events to suit your own style! You can view your calendar in a grid or in a list, and by year, month, week, or day. How you view your calendar is up to you!
Partial feature list: