I have searched through FullCalendar documentation and googled around but I haven\'t been able to find how to add events to Google Calendar using FullCalendar. I have tried
Adding events is documented fairly well, read this: http://fullcalendar.io/docs/google_calendar/
I assume that you can't add events because of their API change:
On Nov 17th 2014, Google shut down V1 and V2 of their Calendar APIs, which FullCalendar relied upon. Please upgrade to the latest version of FullCalendar or at least replace gcal.js with this file (will work down to FullCalendar v2.0.0). Also, your own Google Calendar API key is now required.
Are you using the latest version?