The problem is evaluating social networks on a per-user basis without considering Metcalfe's law: http://en.wikipedia.org/wiki/Metcalfe%27s_law http://en.wikip

The problem is evaluating social networks on a per-user basis without considering Metcalfe's law: http://en.wikipedia.org/wiki/Metcalfe%27s_law http://en.wikipedia.org/wiki/Metcalfe%27s_law I.e. it is not a linear relationship between the number of users a the value of the network.