The study investigated the effects of family, peers, mass media on socialization of adolescents as consumers. The variables studied were social and economic motives of consuming, consumer activity, know-ledge of brands, shops, products and prices. The hypotheses were formulated on the basis of theories and findings of foreign authors. In the course of the study held in a school in Vsevolozhsk, 117 adolescents aged between 13 and 17 were asked to complete a questionnaire. The data showed that adolescents acquire social consumer motives mainly from peers. The peer group is also the main supplier of information on products and services. The study also confirmed the hypothesis that mass media have a negative effect on economic consumer motives.