Social networks connect the world. Human communication takes on another dimension through social networks, with the current generation often referred to as one growing up in a virtual context. This paper focuses on the experience of children and young adults with social networks. The authors evaluate the accessibility of internet access from the point of view of children and young adults, as well as which social networks are the most popular among children and young adults in the Czech Republic. Further sub-questions focus on assessing vulnerability in social networking environments frequented by children and young adults. The authors used a questionnaire survey which was instituted at basic, secondary and higher educational institutions in the Hradec Králové region of the Czech Republic.