According to http://www.museumofhoaxes.com/hoaxsites.html the click fraud site clickmonkeys.com is just a hoax. Is it really a hoax or are they for real? Seeing that they've been around for a while and they are still listed on google would seem to indicate that they are just a joke. At least I assume google would have de-indexed their site long ago if they were for real?
So i looked at the site a bit more and answered my own question. It is obviously a joke site because they explain how the clicks are generated by masses of monkeys using 3 computers each on some huge ship off the coast of california. For a while I thought this site was serious.