I hope this may be of a little help to you. I was hired to create 20 web 2.0 properties for a C list celebrity married to B list celebrity around 2 years ago. The idea was to counter some of the backlash from accusations that he was a conman - I picked the top 20 social media sites of the time and registered with his exact name. i.e. myspace.com/namehere. Ironically as the guy bounced a check on me nothing was ever done apart form the basic registration. I have noticed that his linkedin profile ranks 6 in google serps for "his name" which returns 141,000 results in "_". None of the other sites I built are in the top 100. The page has no one linking to it and links to no one, it beats article from OK Magazine, his RottenTomatoes profile and a bunch of other high ranking blog article with his name in the title.