Look at this article on FB by David Ginsberg, including the comments (mine), about time on social media.
The WSJ writes about the potential effect on "organic posts" (essentially free distribution from companies that did not pay for ads) here. There are also some speculations that FB might not consider some companies at all in its algorithms, or might now allow many sites to be linked or to expand in preview mode.
Update: Jan 17
Here's an article on prospecting on Facebook. I'm not tribal enough for some of this. But the advice on max 3 posts a day makes sense, and on leaving out links (but put them in comments instead of the main post) makes some sense. I am not in the business of having to mass recruit prospects or sell a service or commodity. I think for journalists, the advice would be different. FB seems to want to reduce journalism, but what it really needs is good journalism and factually true stories (from original, not just corporate) sources.
Update: Jan 19
The Washington Post reports that Facebook will take user surveys of various media companies to consider in distributing feeds to users. Users can rate media as to credibility and truthful reporting.
Update: Jan 21
Is a new site called "HomeFundMe" representative of the networking Facebook wants to see? This would be a revolutionary way to look at one's life.