Indications : Should be used to do good things like discussing something about important things, connecting our old friends and spread the dakwah "convey even one verse".
But always misused by people nowadays who use to upload their sexy pictures, saying bad things and put them as facebook status, posting something bad.
The most obvious and dangerous side effect is : Addiction!
Students become lazy to study
And I am now have no mood to study
Cause I took overdose