update: Google has a new policy regarding legal actions targeting them. (I´m not sure if they only apply it to american sites) When faced with threats they send al correspondance to Chilling Effects ************* (www.chillingeffects.org). This org is an EFF, Harvard, Stanford, Berkeley, and University of San Francisco law school clinics playground for free speach on the internet.
chillingeffects.org only offers advice.. but it´s a damn good start
Go EFF!