We are in the process of starting an Alumni email newsletter. If you would like to stay current with the latest happenings and accomplishments in CS, please email firstname.lastname@example.org and I'll add you to the list. If you are CS alumni, I have your email address, if you left one with us. In which case, I'll send you an email asking if you wish to opt-in to the newsletter, once we get it going.
We also have a FaceBook page, at https://www.facebook.com/UCSB.Computer.Science.
We also have a twitter account at https://twitter.com/ucsbcs.