I think Mr. OReilly has an interesting point about how all these different social networks that he is a member of portray an image of who he is... and my belief is that instead of having one ultimate platform such as Facebook with our social graph we might have to see it spread out between different networks ... each network will focus on something specific in our lives, and will hold information about us with regards to that particular niche, topic, group or activities that we have ... for instance I don't think facebook could ever replace Flickr or Ebay, and the two could have many info on me that represent me, my activities, reputation and social graph