Okay, something seems a bit weird.... When I saw that the instructor had a gmail account listed on the third page of the syllabus, I suspected that maybe he's an adjunct and wasn't given an @berkeley.edu email address. However, he's full professor at Berkeley (http://www.cs.berkeley.edu/~tygar/)....
I see this with academics more and more, they don't want to deal with the university IT department and policies, so they just use gmail, google docs, etc.
