Editor: TinyCal is a menubar calendar with Google Calendar integration. It can show multiple months, use custom calendars, and show holidays and personal calendars. Use TinyCal to keep track of birthdays or appointments, or as a Desktop Calendar reference.
TinyCal has many useful features.
Personal Google Calendar integration
Configurable month display
Configurable event display
Custom calendars
Tear-away menu
Growl reminders
Create and delete events
Hot keys
ISO 8601 week numbers