On Thu, Sep 18, 2008 at 11:25 AM, Cloutman, David <[log in to unmask]> wrote: > What about xCal (iCalendar based XML format)? Does anyone use this > technology? It is possible to do it with Atom Feeds? Other ideas? I'm surprised no one has yet mentioned hCalendar -- essentially, an xHTML port of iCalendar's data format. http://microformats.org/wiki/hcalendar I'd suggest iCal for widest-possible interop, and hCal for the 'markup that's both human and computer-readable' end of things. Cheers, -Nate