I don't like to name other people's sites but this guy is doing something dodgy by selling links on which seems to be a PR4 domain. The site is: http://www.4causes.net and has 0 links pointing to the domain and was also registered 5 days ago. There has not been a PR update for at least a month, so how does he have a PR4? When I insert the domain into http://www.archive.org/ I get a result for the 8th of January 2011 and goes to a different site that is also a PR4 The site shows up as having valid pagerank and I can't work out how he is doing it. Any ideas?