GMail+Calendar

GMail also support Calendar functions.
You can:
1. Press "Add event info" in top right angle of GMail box
2. Insert link to KML or KMZ file in field "Where"
3. Add time of event and other information.
4. Send this "geo event" to friends.
Your friends can add this event into Calendar, open KML in GE or GMaps.

Enjoy!

PS Also see test Calendar with "geo events" in Googlepages

Google GeoCalendar :)

I test geo events and make Calendar.
You can add New calendar to your Calendars.
Now this calendar have 2 events. You can see events in GMaps by click and select in Where link Map
You can see this calendar as HTML or XML
You can see and use this with Feedburner

You can also insert into your Calendar events only. One or two.

I do not know all ways from this. It's see very interests.

Calendar event test.

Maybe it is simple geo-time-event-toys.
Calendar-GEC-Spreadsheets->Maps

GEC maps event

Test, pls :)
I play with Google Calendar