How Facebook Friends List order

Facebook has an embedded formula that tracks just how you interact with your friends and after that sorts appropriately. Source

How Facebook Friends List Order



Facebook Search Friends List Order


While the specific ranking algorithm is secret, it does consider the following aspects:

* Just how commonly you visit your friends' accounts

* How often you click on your friends' links

* Photos/tags in common

* Typical teams/ organizations

* utual Friends

* Just how often you look for friends

* Relative popularity (exactly how popular your friends are amongst your mutual connections).

So, the real sorting is not random, yet rather thoroughly crafted to facilitate communication as well as website interactions.