Facebook reuses your 'likes' to promote new stuff

Just spent 20 mins going through my "Likes" and unliking a bunch of stuff. No offence intended to anybody whose business/interest I've just unliked, but if Facebook are going to start using my name and a "Like" I did months/years ago, to promote a story on a "Liked" Page that I haven't even read, without my knowledge, then I'm just not going to "Like" anything any more.

http://www.technolog.msnbc.msn.com/technology/technolog/facebook-reuses-your-likes-promote-new-stuff-880942