Children are today’s most profuse users of Social Networking Sites. Many of their experiences and opportunities will be shaped by their engagement with Social Networking Sites. Subsequently, questions and controversies emerge about the effects Social Networking Sites have on children’s development due to how embedded their lives are in Social Networking. There are both risks and benefits to children on social and emotional development when it comes to the use of Social Networking Sites. Thus, the study was planned with an objective to study the types of Social Networking Sites preferred by adolescents. The study was conducted on 120 adolescents equally distributed over gender who were randomly selected from 2 schools of Lucknow city, Uttar Pradesh. A self-structured questionnaire was administered for collecting the data. It was found that majority of the adolescents were in the age group of 15-17 years belonging to nuclear family whose parents were mostly educated. Facebook topped the Social Networking Sites (SNSs) list followed by WhatsApp which was used by adolescents. Result also reveals that major proportion of the respondents begin using social networking sites at by the age of 14-16 years.