Abstract: The subject of this research is the structure of the social media category in Russian linguistic consciousness. In his research Klyuev pays attention to the components of the social media category (subconcepts of social networks and messengers and their particular examples), their conceptual content and semantic cognitive links. The purpose of the research is to analyze semantics of linguistic units that nominate the social media category, their cognitive interpretation and to define how these units relate in practical use. The research material involved data from the Russian National Corpus. The main research method used by the author for his conceptual analysis was the computer-based content analysis of cases when the expression 'social media' have been used in the Russian National Corpus followed by their cognitive interpretation. The novelty of the research is caused by the fact that the author makes a first attempt to provide a systemic description of conceptual relations between components of the social media category in Russian linguistic consciousness. The mai nconclusions of the author is that there is a certain initial stage in the development of the (sub) concepts in Russian linguistic consciousenss as well as the obvious semantic relationship between nominations that objectify (sub) concepts and cognitive relationship between these (sub) concepts in the minds of users. 

Abstract: The subject of the research is the structure of WhatsApp and Viber subconcepts in Russian linguistic consciousness. The aim of the research is to describe the response of the brain association areas to WhatsApp and Viber stimuli and develop a classification of cognitive criterions. In his research Klyuev pays special attention to comparison of subconcepts category structures, in particular, he carries out a comparative analysis of classifiers that were obtained as a result of cognitive interpretation of nominative areas subconcepts. The resaerch material included responses that were recorded during a free association experiment (on the Internet network). The method of the author's conceptual research is a cognitive interpretation of linguistic units that nominate the content of subconcepts (associates are united into cognitive features that were later developed into a list of classifiers based on the data obtained). The main results of the research include the following: determination of similarity of subconcepts at the level of their area organization and category structure; definition of cognitive features "color and elements of the graphic style' and 'WhatApp and Viber names' as the primary methods of differentiating between subconcepts in a user's mind; and definition of a significant share of affective features in the structure of both subconcepts.