Our agency develops social web portals that allow for a variety of interactions between the user and the system, and between the users themselves. In order to ensure high performance and reliability of individual functions and tools created for social networking sites, we use only the proven and robust technologies. We are also aware that the content is not the only factor that contributes to the success of a social networking site. Another important elements are the mechanisms used to maximise the user engagement. In our agency, every project starts with a thorough analysis of the target group and specific objectives of the social networking site, as these are the key factors that determine the methods of graphic and functionality design.