If you have put time and effort into building up your following on Facebook and post regular content then these recent changes to how you can manage your Facebook posts will be of real interest.
Facebook will now let you target a subset of your fans with a post and will also allow you set a time after which a post will not show in a person news feed. Very handy that for time sensitive information.
Check out http://media.fb.com/2014/12/10/new-tools-and-insights-for-publishers-2/ for more information