So I was trying to figure out how to publish my feed from iCal so that friends could subscribe to follow me. Found this post that explains how to do this using Box.net
iCal calendar publishing is pretty darned handy. It lets you view shared calendars by subscribing to them directly in the iCal application. Unfortunately, unless you have a .Mac subscription, Mac OS X Server, or some other WebDAV-enabled server at your disposal, publishing iCal calendars is impossible – iCal publishing requires WebDAV. But now there’s a way.
Box.net offers free 1GB accounts, and their servers run WebDAV. So here’s what you need to do, in a nutshell:
1. Set up your box.net subscription (easy and fast!).
2. In iCal, publish your calendar (Calendar -> Publish) to https://www.box.net/dav, using your box.net account name (email) and password.
3. Subscribe to the calendar in iCal (Calendar -> Subscribe) at http://www.box.net/dav/Your_Calendar.ics. NOTE: Do not use https here.