A social graph is a physical representation of how people,
groups and organizations among other things are linked on a social level in
terms of social media. At its very base core, it’s just a list of who knows who
and how they’re related. But on a much larger and broader scale, it is capable
of so much more. The term was popularised during the 2007 Facebook F8
convention, and since then Facebook founder Mark Zuckerberg hopes to bring the
popular social media platform to a point where its social graph can be shared
with other websites outside of Facebook’s control so that user’s relationships
can be implemented across the web. However, before Zuckerberg’s dream can
become a reality, there are several limitations the graph will have to overcome
first. The most noticeable one of these problems is described LiveJournal
founder Brad Fitzpatrick who states that “Unfortunately, there doesn't exist a
single social graph (or even multiple which interoperate) that's comprehensive
and decentralized. Rather, there exists hundreds of disperse social graphs,
most of dubious quality and many of them walled gardens... the graph
needs to exist outside of Facebook. MySpace also has a lot of good data, but
not all of it. Likewise LiveJournal, Digg, Twitter, Zooomr, Pownce, Friendster,
Plaxo, the list goes on. More important is that any one of these sites
shouldn't own it; nobody/everybody should. It should just exist.
References
Margaret Rouse (2010), What is Social Graph?, 28 July, http://whatis.techtarget.com/definition/social-graph