Evolution Data Server provides a single database for common, desktop-wide information.
Agenda keeps track of your events and tasks, lets you enter your thoughts, and easily create calendar or journal websites.
A screenlet which displays calendar events
A Web-based calendaring system, allows multiple users to add and edit calendar events using a Web browser.
Software for creating user-customized desktop calendar. This calendar is also a PIM which allows scheduling time easily. Screen Calendar 7.4 supports iCalendar format to let you import events from iCal files to your desktop calendar.
Entourage Events 2 Web – Move Entourage calendar info to web format
gsmcal2html downloads calendar events from a GSM device and creates an HTML calendar.