I've known Google had a calendar, and I've used other computer/web calendars before, but I decided to give Google Calendar a try.  I love monthly calendars - I apparently visuallize my week best.  I've been printing monthly calendars for awhile now.  (Visualizing really helped with due dates and planning how long I could procrastinate any given assignment :) )  However, with having to set appointments and collect addresses and the like, I was thinking rescheduling would be easier in an electronic format.  So I've played with Google Calendar a bit, and now that I'm understanding it a little better, I think I'm going to thoroughly enjoy it.  I just discovered how to color-code things. :)  The appeal also lies in the fact that if I can get used to it, I won't have to carry my little folder around with my calendars since I have internet access at work, too!