Recent surveys and trend lines compiled by the Pew Research Centerconfirm that Facebook maintains its dominant role among social-media users in the United States.
In 2018, 69 percent of online adults used Facebook, second only to YouTube. Furthermore, Facebook's users also visited the site more frequently than users of any other platform.
Graphic from Comscore
Page 31 presents a critical set of information.
Professional communicators must understand how Facebook decides what content to surface for particular users, and what content to ignore. As the authors state, Facebook claims to include 100,000 data points in its decision-making algorithm, but three are weighted far more heavily than any others.
Social Media is visual media.
This is one of the most important things that you can learn in this class.