MEMRI, an organization I am mostly familiar with because of its inaccurate arabic translations, sent a SLAPP letter to Juan Cole.
Professor Cole reprinted the letter on his site. Go read the letter and Professor Cole's response to the letter. If you are so moved, send a polite letter protesting their threats to memri@memri.org.
Hell, if Duncan gives me a big megaphone, I might as well use it.