I have been using Facebook for the last years to fill every dead time:waiting for the bus, ads on TV, compiling, etc. The quality of the information coming from Facebook is inferior to any other social network, at least to my experience (it can be I follow/know the wrong people), though the part of the brain that controls procrastination seems addicted to this lower quality information and the chattering there. Also, I don’t want to simply delete my Facebook account and move on, most of the people I know are present only there, neither I want to be more “asocial”.
The Android market has always a solution. An app let you define rules on how long are you permitted to use each app. I am self limiting myself to ten minutes per day of Facebook. Second day and the rule is still in place without exceptions!