The Apple Developer Connection’s (ADC) Internet Developer site has published a new technical article: “iCalendar Files on Mac OS X.” Apple’s new calendar application, iCal, stores its data in the standard iCalendar (.ics) file format. This article covers some options for publishing iCal data, introduces some PHP and Perl iCalendar handling scripts, and demonstrates a WML calendar viewer. Web developers interested in the popular IETF calendar standard will enjoy this practical introduction and tutorial.