Subscribe with iCalendar
If you use a calendaring application that supports the iCalendar standard, you can use it to keep up with our nocturnal adventures.
Required software
Applications you can subscribe with include iCal (for Mac) and the open-source Mozilla Calendar (for Mac or Windows). Or you could use a web-based calendar like 30boxes or Google Calendar...
There is also support for some versions of Microsoft Outlook. Check out the wikipedia entry for more info.