Doug Bowman of Stop Design fame was part of the team that worked on Google Calendar (although he has never really said what his role was). Needless to say, he has been using it for a few months. He has a great write up over on his blog with lots of tips for making your GCal experience the best it can be.

Some tips may seem obvious, other tips may be completely new to you. Specifically, I’ve noticed hesitation by Mac users in trying Google Calendar, which I’ll address in a few Mac-only tips sprinkled in with the rest.

The list covers keyboard shortcuts, custom displays and Gmail integration, among others.