This can now be found at our dynamically generated Events page
The nearest few events are also in the left hand menu.
If you have a computer or mobile phone which supports CALDAV access to remote calendars then the Oxford Phab programme is available at
Instructions for several clients can be found at http://radicale.org/user_documentation/. Note that if your client asks you for a username and password you can use anything you like as this calendar allows anonymous read access.
The program is also available here