Calendar

» Sharing is built-in - Invite others to meetings and track responses, share entire calendars with your contacts, or make your public event information available to the world.

» Responsive, intuitive interface - Drag-and-drop capabilities make it feel like a desktop application.

» Integrated contact list - Your contact list in Calendar is always in sync with your Email.

» Mobile access to your Calendar

» Security and privacy - You choose who can view your calendar, when.

and other useful features ...