EDGE RANK is the name commonly given to the ALGORITHM that Facebook uses to determine what should be displayed in a user’s NEWS FEED. As of 2011. Facebook has stopped using the EDGE RANK term INTERNALLY to refer to its NEWS FEED RANKING ALGORITHM.
EDGE RANK used to be straight forward with 3 main components and their subsets. Now Facebook has a new algorithm that takes into account more than 100K factors in addition to the original three
Analysis of the Internet Retailer 500 Facebook Pages shows engagement sunk 27% in 2013 vs 2012, and rumors abound that Facebook’s News Feed algorithm is increasingly hiding Page posts to force marketers to pay for exposure in the News Feed.
The average user’s network generates 1500 updates per day, but only a fraction of them appears in the News Feed. More individual status updates means more competition for organic slots
Facebook never revealed all ranking factors, only some. Researchers, surveyors and analysts tried to figure out some others
The old formula