This thesis is focused on Czech YouTube vlogs, their authors and spectators. I have therefore been watching those videos and attending events in the YouTube community over a few months and also asking authors about their motivation to create videos as well as the spectator's motivation to watch them. I have categorised and analysed Czech vlogs and associated videos. I have formed an overall opinion by applying texts by various sociologists and other theoreticians with the aim of presenting an integrated view on this topic. Youtubers and vlogs have the power to influence their audience as there is such a large number of spectators, mostly children.