One defense a small party has against a huge corporate SLAPP suit (or any bogus suit, particularly in this age of over-reaching copyright claims) is the publicize the legal bullying, and the first step has traditionally been to share the ill-considered and legally bogus cease-and-desist letters with the Internet at large, so that everyone can see what fucktards Big Company X is being.
Large corporate interests would prefer their bullying not be so widely known, so they’ve been working to try to find a way to keep it all quiet, inspired no doubt by the whole national security letter bullshit promulgated by the Bush administration. One particularly absurd argument is that the letters are copyrighted material, and that unauthorized distribution is an infringement on that copyright. This ought not even pass the risibility test, but, sadly, some judge has actually bought the argument.
If this ruling stands, the implications for free speech in America are dire indeed.