So, Facebook will apparently put your photo into it's third party sponsored ads (sponsored stories) which it will then dump in your timeline/news feed from some point in the new year.
I'm going to get rid of my FB account this evening. The only thing I'll probably lose access to is photos of me that have been taken by pals or pals of pals. Which isn't really a concern. If I can't remember these instances in my life utilising my own memory, then they can't have been that important anyway.