What is important for Facebook?
Affinity – i.e. your relationship with the user. The more he interacts with your content in the past affects how likely he will see your posts now. The more you like – the more you see!
Weight – i.e. what type of action was taken on the post. How much priority will be given to your content, based on your post types. Facebook has a hierarchy of posts because some of the posts gear more engagement than others. Some numbers (from Facebook, Hubspot and BuzzSumo)
Facebook post with images sees 2.3X more engagement than those without images
Short form text posts of less than 50 characters get the most interaction.
Organic engagement is highest on Facebook posts with videos (13.9%) and photos (13.7%)
Videos that are directly embedded get over six times the engagement of embedded YouTube videos.
Surprisingly, but posts without hashtags get more interaction than posts with hashtags
Posting images via Instagram appear to provide a 23% increase in engagement
Decay – i.e. how old is your post? Average life of the post in Facebook – is about 3 hours. Most “readable time”: 12:00 – 1:00 pm – on Saturdays and Sundays; 3:00 – 4:00 pm – on Wednesdays, 01:00 – 04:00 on Thursdays and Fridays. 50% of 18-24 year-olds go on Facebook when they wake up.