Two ways to share iCal without .Mac

My organization, The Center for Computation and Technology, has been deploying PHPiCalendar (as Mark mentioned) for some time now...even building a small web app to help us manage group calendars (though we're in the process of replacing it with a Meeting Maker (http://www.peoplecube.com/products/meetingmaker/default.cfm)

Though it's not iCal, has anyone had any luck with integrating the two?

Another vote for google calendar. You can subscribe via iCal, and you can have more than one person with edit rights to the calendar

Yup, it works with us too :)

How about Google Calendar? It works great with iCal, you can let your friends view it or edit it, and it is from Google so you know it's good. All you need is a Gmail account.

We use the Kerio MailServer - works excellent and you can publish subscribe iCal aswell as share calendars with Entourage and Outlook. At an excellent price too.
I use it every day, and I can recommend it to any workgroup up to 200 users.
Quite good price too...

Dreamhost also offers an incredible bargain for hosting and comes with tons of features including WebDAV which you can configure however you like. I have over 20GBs of space and very nice configurability.. I have been a customer for almost a year and they seem to be an excellent company really operating how you would hope. I have been using it for iCal sharing and anyone I know that wants to do ical sharing I can set them up a webDAV folder on my server in 30 seconds.

I actually use Google Calendar in just subscribe to my Calendar using iCal. It make's me far more protable.

Kevin: You're right, except S3 itself isn't straight-up WebDAV. Jungle Disk is a WebDAV server that runs locally, using S3's 'object' and 'bucket' model as a backend.

(Shameless plug) Keep an eye out for the upcoming SyncBridge from Infurious. For a lot cheaper than .Mac, you'll be able to keep calendars in sync across unlimited computers, and share your calendar with friends (i.e. give them read and write access).

Jungle Disk is not a service offered by Amazon. Rather, Jungle Disk is an application which facilitates the use of Amazon's S3 service which is a WebDav-based hosting solution.