Its been coming
They have been working up to this. But worse, they are sneaking it in for personal posts.
If you now post on FB you are offered a link to "promote this post". Yes for cash FB will ensure all your friends see what you have posted. Which is what used to happen but hasn't been happening for a while, presumably as they edged their way towards this pay for viewers model.
Also I am seeing more adverts inserted into my timeline to "like" products. Hilariously all of them are way off the mark. Yesterday I was invited to like a page for an Australian Equestrian Supplier as part of a promoted post. How the hell does that work? I've never even been to Australia and don't go near horses.
With FB losing money and their site becoming more cluttered and wanting money will they be going the way of MySpace I wonder?