Lightning Calendar - Organize your life — it’s about time!
Date Reminder - Date Reminder reminds you of recurring or nonrecurring events, like birthdays, bills to pay...
Google Calendar - Spend less time managing your day & more time enjoying it
GoGetter - GoGetter is a task management system based on David Allen’s ever so popular Getting Things Done...
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
todoMini - Your web based TODO list.