Don't forget about Tor!
Great article, and very informative. Can't wait to see the head-to-head review of the anonimity software you mentioned. I was surprised, however, to see no mention of Tor in your article. I don't know much about the subject, but I have been seeing a fair amount of hype about this new anonimity technology that uses "onion routers" to keep your identity private on the net. Maybe we'll see a head-to-head-to-head review then?