I use facebook as a social tool, not an addiction, if you feel yourself being overcome with it and if its using a lot of your spare time up, delete it, if you think you can manage it then cut down, say ' I will only use facebook 20mins per day max'
Hope this helps
I joined alot of forums too (self help ones) to try an kerb me away from websites that promote negative thinking and procastination behaviour..
This is one of the self-help forums I joined another really good one is
.: The Community for Excellence :.
Ax