A very useful online organiser, I can now organise my schedule easily (thanks for the schedule sharing feature, share my schedule with the related person is a very efficient way). I like the free SMS service which can send the free SMS to my friends for the events. and SMS to me to remind the special events.
Seeing the big picture
With Google Calendar, you can see your friends' and family's schedules right next to your own; quickly add events mentioned in Google Mail conversations or saved in other calendar applications; and add other interesting events that you find online.
Sharing events and calendars
You decide who can see your calendar and which details they can view. Are you planning an event? You can create invitations, send reminders and keep track of RSVPs right inside Google Calendar. Organisations can promote events, too.
Staying on schedule
You can set up automatic event reminders, including mobile phone notifications, and instantly bring up anything on your calendar with the built-in search tool.
www.google.com/calendar