What is Facebook Edgerank
Facebook uses EdgeRank (aptly named and pictured above) to rank every edge, or potential story, for each user. Facebook then displays the edges with the top scores—computed as the product of the three factors—in the Newsfeed, with the highest scoring edge at the top, followed by the second highest, then the third highest, etc. Edges that don’t make the cut are withheld from the Newsfeed, although they may make a brief appearance in the Ticker.
Edgerank is broken down into:
1) Affinity:
Affinity is the strength of the relationship between a user and one of their connections (friend, Page, group, etc.). Because Facebook can’t read a user’s mind (yet) to determine their affinity for a specific connection, they rely on a user’s engagements to construct the affinity score.
What engagements are they tracking? Simple answer: every single one!
2) Weight:
Weight is the value of a certain story, as Facebook values each type of story differently. For example, a “like” on a post weighs less than a “comment” on the same post. This plays a large factor in optimizing for virality of your Page’s posts—but more importantly, the type of your Page’s post.
As a Facebook Page marketer, you know the name of the game is to reach as many of your fans with a post so that there are more people who can engage and also who are influenced by your message. The type of the post you create will determine the weight of the “edge” or story you are creating—and thus, play a large role in determining how many of your fans will see it in their Newsfeeds.
Although there isn’t a significant difference in the reach of a text-only status update (the least-valued post type for “weight”) compared to a post with a video, there are several reasons why the most engaging Pages only post photos, links and videos (and almost never text-only status updates). The analysis and reasoning behind this will be explained in an upcoming post on “The 4 Factors of Post Optimization”.
3) Time decay:
This factor is the only one of the three Edgerank factors that is sometimes mistaken with a wrong definition. Time Decay has nothing to do with the time since the “connection” was created (ie. the date of Pages liked or the date of when a friend request was accepted). Hope this brings relief to some marketers.
Time Decay is simply the “freshness” of the post. It’s all about how much time has passed since the story was created. This is the reason you won’t see posts from yesterday sitting at the top of your Newsfeed when you log in. It’s also why the posts in your Newsfeed are in (approximately) reverse-chronological order. The simple solution to battling Time Decay—post consistently so that new posts replace older posts as they ‘decay’. More details on how you can factor in Time Decay into your Post Optimization strategy will also be explained in detail in an upcoming post on “The 4 Factors of Post Optimization”.
(source: https://blog.getpostrocket.com/2012/05/facebook-edgerank-101/)
What is Facebook Edgerank Demystified
Source: CopyPress
Facebook Edgerank Resources
Off the back of my Post the other day, another article about the importance of EdgeRank. As Facebook moves into a more corporate structure these aspects are becoming more and more relevant! – Guy. What is Edgerank?…More at Edgerank: What It Is and 5 Key Ways to Improve It | Manta Marketing …
Twitter Feeds
Facebook EdgeRank. Whether you've heard about it and still don't quite get it or are just hearing about it for… https://t.co/E1b0XXBN
— RERainmaker (RealEstate Rainmaker) (@RERainmaker) Tue Sep 4 2012
How do people share and consume contents on #facebook? Check out this nice infographic about Facebook's #EdgeRank … https://t.co/iJCy2o5c
— alimostofian (Ali Mostofian) (@alimostofian) Tue Sep 4 2012
Here's a GREAT explanation of Facebook's infamous Edgerank system! https://t.co/V5RE2ACT
— SocialKitchenNH (Social Kitchen) (@SocialKitchenNH) Tue Sep 4 2012