Hope that I am allowed to post this here... I didn't see anything saying that I couldn't. If this is in violation, please let me know and I will know for sure not to do so in the future.
This site was created to offer free calendars for people / groups / etc. You can get your own free calendar and then share your calendar with a simple URL (ie. http://yourgroup.LDSTimes.com/)
It's a great calendar with options to print the calendar, RSVP, and even provide RSS feeds.
Check it out today!