Have you ever noticed how social networks don’t do a very good job of representing how our personal networks actually function? Sure, places like Facebook and MySpace and LinkedIn have their utility, but their flatness is a problem.

Think about your Facebook, for instance. If it’s like mine, you have friends there who run the gamut from “real life best friend” to “people I know” to “guy I couldn’t pick out of a lineup if my life depended on it.” You may have relatives, friends from school, co-workers and “assorted others.” And they’re all absolutely equal.

Our LinkedIn networks can be even less attuned to how our lives works.

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