[fastpat]

I've found a file at Censorship by Proxy: the First Amendment, Internet Intermediaries, and the Problem of the Weakest Link which was published in the University of Pennsylvania law school Journal in 2006.

I think the case is list as:
Zieper v. Metzinger, 392 F. Supp. 2d 516, 522-23, 538 (S.D.N.Y. 2005), wikipedia has a short page on it as well.
http://en.wikipedia.org/wiki/Zieper_v._Metzinger