Social networking sites are disaster
It creates a distraction. Social networking entices people to spend more time online and less time interacting face to face. Thus, it encourages time wasting activities and supplants more time wasting activities...Sometimes a wrong sense of security may cause various unwanted activities like hacking, leaking sensitive information etc...It may also create brain disorders in humans like limited attention spans and inability to engage in real life conversations, a need for instant gratification..