PERB has recently placed on its website 13 decisions issued in the last month. I subscribe to PERB's email notification system for new cases but didn't receive anything in the last month. I've been told that PERB has recently switched to a new computer system, which may require that people re-subscribe to the email notification system.
Correction: I've been told that PERB's email notification system is still working, they're just a little behind on sending out the email notifications. So you don't need to sign-up again.