Kevin Smith has published "Here We Go Again: Latest GSU Ruling an Odd Victory for Libraries" in Scholarly Communications @ Duke.
Here's an excerpt:
So this ruling, like each ruling in the case, is clearly a disaster for the plaintiff publishers. Once again it establishes that there is significant space for fair use in higher education, even when that use is not transformative. Nevertheless, it is a difficult victory for libraries, in the sense that the analysis it uses is not one we can replicate; we simply do not have access to the extensive data about revenue, of which Judge Evans makes such complex use.