The purpose of this manuscript is to research the implementation of social media by various companies in order to promote their products or services.In this work, the following methods are used:content analysis, in order to identify various PR instruments;comparison, for identifying the greater efficiency and usefulness of promotion paths;type classification of digital advertisement;systematic approach is used to study the issue of advertisement as a phenomenon.The analysis of ADS in social networks showed that the use of Internet resources for product and sales promotion is at the stage of development. New methods are being created to facilitate and systematize this service.The information presented in this article can be applicable in the educational system, for example, for students studying management, public relations, economics, or for employees in the field of advertising and digital promotion.In this article, the actual and potential advantages and disadvantages of using social networks to promote a product have been identified. The use of social networks can be safely considered an active promotion channel. This issue requires further study and development in compilation with the emergence of new ways of PR promotion in general and in particular on the Internet.