In the world of Web 2.0, the evolution of the static web towards an interactive, collaborative digital world, we are subjected to many social platforms and applications on which we can represent our-selves. These applications enable us to present ourselves accordingly for an applications’ social con-text. However, the application alone does not determine our entire representation of self. No, rather, in addition to the social setting, our peers on such platforms greatly determine our representation. Adolescents in particular are very vulnerable to meeting the norms of peers and audiences in a specific social setting. They are in the midst of discovering who they are and where they belong. Earlier, ado-lescents would undergo this development in social settings that were part of one of three domains: family, neighbourhood and school. Now, in the era of Web 2.0 and its endless possibilities in discover-ing online social environments and other people with whom adolescents can interact, the internet is considered to be a fourth domain where adolescents develop themselves. Instagram is one of these platforms on Web 2.0 where one can choose to represent oneself. This thesis tried to discover how adolescents represent themselves on Instagram, why and with what consequences according to them. The sample was focused on adolescents between the ages of 15 to 18 in Alphen aan den Rijn, the Netherlands. The Netherlands is a strong individualized culture and its population are heavy users of Web 2.0 applications and Instagram. Since the internet is considered to be such an important domain in self-development in adolescence, it was interesting to discover what behaviours adolescents show on Instagram and what effects these behaviours have. It is not new that adjustments of the self, also referred to as the altered self, take place in different social settings. As far back as 1902, adjustments of the self in a specific social setting have been acknowledged. Throughout the years it has been concluded multiple times that our ...