Doing some advertisement for a service I recently released: icalfilter.com.
Today, when you want to subscribe to a calendar, you basically have two options:
- Add the calendar's url to the list of external calendars in your calendar viewer. You will receive updates, but won't be able to delete events you are not interested in.
- Take a copy of the calendar and import it in your calendar viewer. You will be able to delete events you are not interested in, but you won't receive any updates.
icalfilter.com lets you create filters for your imported ical calendar files, which you want to have updates from but hide events you are not interested in. Good example uses are schedules, facebook events, etc.