Subscribe to a subset of your Facebook events using ical
Facebook provides a way to export and sync all your
events to a third party calendar application such as Google Calendar. However they include events you have not yet
responded to which can fill up your calendar pretty quickly if you get invited to a lot of events.
This service acts a filter between facebook and your calendar and you can choose to filter out events you don't want. If you want to filter events in some other way or have some other feature request etc, let me know on Google+ or Twitter.
Subscribe to this calendar in Google Calendar or a similar application
If you have a feature request or have found a bug you can post an issue on github.