Notes

1. Improve CSE Google Calendar mangement by inserting and deleting events via a Web Form.
2. iCal files aren't optimal because it takes Google 2-4 hours to reindex the iCal page and insert or delete Google calendar events.

References

1. http://code.google.com/apis/calendar/data/2.0/developers_guide_protocol....
2. http://code.google.com/apis/gdata/articles/php_client_lib.html
3. http://www.ibm.com/developerworks/library/x-googleclndr/