Anyway I found myself falling into a routine of checking both Google Calendar and Facebook when I am checking my availability. Surely there must be a way to bring Facebook's events into Google Calendar! And there is! And it's easy peasy! Just follow the following simple steps.
Get the URL
You'll need a URL for your Facebook calendar.
> 'upcoming events'
> Right click 'Copy link address'
If you go to a text editor and paste the link it should be in the following format. If this is the case then you can continue to the next and final step.
Oh yeah in one of the screen shots above you'll see an option for 'Settings' if you need to refine the events that gets exposed to Google Calendar you can change the settings there.
Add to Google Calendar
> 'Other Calendars'
> 'Add by URL'
> Paste the URL in your paste buffer
By all means rename the new calendar listed under 'Other Calendars' to something obvious like 'My Facebook Events'.