I listened to Back to Work: 200: Blitzkriegscheiße a couple of weeks ago. Merlin Mann and Dan Benjamin share excellent calendaring tips for yourself and shared events at the 52–minute mark.
The suggestion to include a list of agenda items in the notes field for the event is one of my favorite tips.
For reference, I currently use:
- Google Calendar (website) on my Mac.
- Fantastical for personal calendars, and Calendars 51 for work calendars on my iPhone 5s.