I found it very informative, I mean Wikipedia[1] only gives a scant 140-ish word overview of the subject (and basically the same thing on the page for Nissan Computer itself), and though it does give 3 references, 2 of those are PDF's from the court judgements and the 3rd is an expired link to the USPTO. Oh yeah, Nissan.com[2] actually contains the most information, though it looks biased and sensational (to be expected). Otherwise, I'm not finding just a whole lot of recent information about this out there. I see a Wired article from 2001, and a Salon article from 2002, but other than that the chatter is few and far between.
Meanwhile, the site that OP's article was posted on is "the course website for the suite of law & technology courses at Yale University offered by Elizabeth Stark and Brad Rosen" (which is apparently CPSC 183, 184, 185 at Yale University). Publish date of the piece was 2011. So as far as sources go, I'm not sure how much better you could get than this. Not even a single ad, and right under 500 words, which is a nice size for a short take on the subject.
1. http://en.wikipedia.org/wiki/Nissan#Nissan_Motor_Co_v._Nissa...