If we are discussing ethics, it might be interesting to have some details on JSTOR's finances. As a non-profit charity, such figures may inform our judgements...

I did one of my little Form 990 readthroughs on wikien-l: http://lists.wikimedia.org/pipermail/wikien-l/2011-July/109234.html

EDIT: librarian Andrew Gray did the same thing with an earlier filing; noticed some things I didn't, like how few articles they sell to the general public: http://www.generalist.org.uk/blog/2011/jstor-where-does-your-money-go/