Event Tickets allows your visitors to RSVP and buy tickets to events
The convenient JavaScript snippet to create buttons
Manage events on a Google Calendar
Full-sized drag & drop event calendar
Generate calendars in the iCalendar format
Free Lock Manager
LuxCal Web based Event Calendar
Event tickets for SilverStripe and Event Calendar
Decentralised PHP based event calendar
Scada for Home Automation
Open Source API-centric PHP Micro-framework
WordPress event calendar plugin
Calanda 0.8 beta. Update to Calanda 0.7
Nagios external infrastructure host/service status display
a mysql php text ticker script