iCal Event Maker is a free online tool where you can generate iCal file.
You can use the generated .ics file to share events with others.
Host it in your intranet to share the events with your team member.
Host it on the web and share the events to the world.
Send it via email so peolpe can import it into their calendar.
Check it out at iCal Event Maker
For more information go to the 'About' page: About.htm