Web based calendar?

here is the deal, I have to share a calendar (for scheduling) with a couple of people who for technical reasons cannot gain access to my Outlook exchange server. Don’t ask.

Is there a web based calendar program that would allow multiple people to post appointments (single or multi-day), does not contain a metric butt load of spyware, and is easy to use?
It does not have to be freeware / shareware.

Is this because they are not using outlook?

Opengroupware.org has plugins that work with quite a few different clients as well as a webbrowser interface.

http://www.opengroupware.org/screens/index.html

I have setup and used this calendar:
http://www.monmouthchurch.org/calendar/info.asp

It works great. It does require a server that can serve Active Server Pages.

You can take a look at Yahoo Calendar. I think everyone needs to have a Yahoo account, however. But you can sync your Outlook calendar to the Yahoo calendar, and then let others (Yahoo refers to them as your ‘friends’) add and view your web based calendar.

I haven’t tried this, so it may not work as promised.

Thanks for the replys, it looks like the Yahoo account might be the best.