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    « The public/private divide in MBA rankings | Main | The new accidental reply to all »

    May 03, 2009


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    Ryan Healy

    Hey Robert,

    Thanks for linking to and summarizing the post. I was surprised by a lot of the numbers, most notably the Twitter numbers. I'm really interested to see where Twitter ends up going. It's definitely not a social network in the traditional (Facebook) sense. It seems to be turning into a marketing tool for businesses of all sizes and a search tool for real time info.


    Bradley Young


    Facebook not making sense for you is a direct result of Metcalfe's Law: the value of a network is proportional to the square of the number of users.

    The classic example is fax machines: one person has a fax machine, the value is zero, everyone has a fax machine, you now have to have one.

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