Usage of the social networking sites is very popular now a day’s. Social networking sites are used to make relationship with friends, relatives, customer and clients. Social networking sites has two sides one side is positive and other one is negative. The main aim of the paper is to find out the impact of social networking sites on young population, business and society. This study is descriptive in nature and used secondary data. Social networking sites are very helpful in every field if it used in proper manner but if it is overused and inappropriate use it becomes very dangerous. It is a need of the time that every human being should try to understand the merits and demerits of these websites.