I created a Facebook page for my shops, and I occasionally post from that page onto my personal Facebook page, but it seems to me that Facebook is dying out, and I believe a lot of that has to do with how Facebook has been tweaking the settings. It seems the majority of what I see in my stream now is advertisements and posts from businesses I follow, rather than posts by my friends, which is what I'm there to see. I would really like to see the two separated out so that I could click on a stream to see personal posts, and another to see what the businesses and shops I follow have been up to.
I see Twitter making the same mistake. I used to go to the local news pages on Twitter and see all of their latest postings, but now I see posts from 2 or 3 days ago, and sometimes even older posts, rather than the breaking news they've just posted. I'm finding it hard to even see the latest posts on my shop account so that I can retweet them on my other accounts. If i can't do those things, there's less of a reason for me to be on the site, and I'm not the only one who feels that way, so if they continue down that same path, they will lose users. Losing users means the site is less valuable for advertising, so they will eventually lose revenue.