Implicit Social Networks

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{Image CC by jared Thanks!}

Rogel rants about social networks here and here. We (=outbrain) are often categorized as being a social network focused on sharing of blog content. I had this question come up on several occasions, especially with VC’s, and I get annoyed every time. After all, I’ve been known to quote this…:

"As a matter of fact, I think I know more social networks than people…"

I always argued the notion of outbrain being a social network. That’s exactly what I was trying to avoid! I didn’t want to enter my contacts in the 173rd site where my only real practical use would be invitation management… I have enough of that on LinkedIn and FaceBook, etc, etc!

But it kept bugging me… after all, it is true that outbrain is a platform for social recommendations of blog content… hmmmm – did we fall in the trap we were trying to avoid?

Then one day, my co-founder Ori made a brilliant observation:

outbrain is an implicit social network

That’s it! The world of social networks breaks into 2 categories: explicit networks and implicit ones. I think they can roughly be categorized as follows:

  • Explicit Social Network – a person is defined by the people s/he connects to
    (Facebook, LinkedIn, Twitter and MySpace are good examples)
  • Implicit Social Network – a person is defined by his/her interests
    (Last.FM, Amazon, Netflix and outbrain are good examples)

The power of implicit social networks is that they are not limited to the people you happen to know. Their weakness is in letting algorithms make social decisions for people. If the algorithms are good and the data set is comprehensive, magic happens. We’re getting there…

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