>>dkrich+(OP)
Granted, they aren't tracking your browser history, yet, in the manner I described. However, have you ever been to FB from a link? If so, you now have an FB cookie. Ever been to a website that has the FB like button, same thing. It's kind of like an STD. You don't know you have it, but it will follow everywhere. You can find out you have it, and try to take the appropriate actions, it'll just keep popping back up later in life. Now, they can track you anonymously. Whether they know it is you and link it to the shadow account they have or not, they still have data from a real person they can monetize. All without you having an account.
I'm definitely not giving Google a pass. I just didn't mention them ;-) Google Analytics, Fonts, whatever are just as bad, to me. I as an unsuspecting web user have my browser tracked from web developers using some free tools. I have no idea that it is occurring as a viewer. If a website puts in FB's like buttons, it is visible to me, and being in the know, I understand the repercussions of that site's decision. GA, Fonts, etc, are completely hidden from view. This is why I've used NoScript/Ghostery/etc throughout the years. It started with ads, but now I'm more concerned about these types of scripts.