Facebook 'edgerank' algorithm
Just read something interesting, and thought I would share it here.
Seems Facebook is (or has been) implementing a similar style "pagerank" algorithms to items that appear in people's newsfeeds, etc -- called "EdgeRank". Essentially - it looks at how often a user looks at a page, how often they post to it, and how recent those comments were posted (time decay) to determine how 'effective' they were/are.
I suppose it makes sense now why some of those surveys (i.e., 'See which movie star YOU are most like!') do well. It's engaging, gets people to comment, etc, etc.
In a nutshell -- I suppose it reiterates what some have known all along -- it means make your page interactive and interesting. If you just try and have a salespage type fan page, updates will quicly drop and then apparenltly/actually won't show up in users newsfeeds.
John
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