Background. Digital technologies have long become an integral part of everyday life. Internet and Social Networking Sites (SNS) are considered to be one of the socialization institutions along with traditional school and family.

Objective. The research is concerned with studying the peculiarities of teenagers’ social psychological well-being when using SNS. The analysis aims at revealing the impact of demographic, social stratifying and social psychological factors on the type of adolescent self-performance at SNS, their attitude towards regulations of interaction at SNS, their concern about potential risks and also opinions about the effects of SNS socialization on their personality.

Design. The paper is based on the results of 2074 school-aged adolescent survey conducted in 2016 in Moscow region, Russia.

Results. According to the survey, the adolescent well-being when using SNS depends on the type of their self-presentation. The data showed that affective significance of social networking for adolescents who seek the attention of the strangers produces a negative impact on their emotional well-being: those who refer to their SNS profile as “provocative” are more likely to feel the “addiction to virtual interaction and other’s opinions” – 17.4% (mean 7.1%; p≤ .0004), being disturbed by “more popular profiles” – 21,7% (mean 4.2%; p≤ .00001).

Conclusion. The survey showed that nowadays adolescents deem the SNS as the most important communicative field where the fundamental age-related changes take plaare foundce. The tendency to expand social contacts by means of virtual communication was found to produce negative impact on adolescent personal development and social interaction in real life.