10 essential applications and utilities for Facebook
you always want to explore and make use of all the applications (apps) and utilities (add-on) on facebook even though you are a familiar user of this social networking site? tryHow to know who unfriended you, delete and view your profile most on Facebook
if one day suddenly you can't find your friend's facebook in your friends list, you will wonder if the person has unfriended (blocked), blocked (deactivate) or deactivate?