The submitted diploma thesis "Campaigns against racism" is focused on the analysis of comments which appears on webpage www.youtube.com at videos that contain campaigns against racism. The aim of this diploma thesis is the analysis of the reflexion of the comments that are the contributions under video campaigns against racism on web pages. From the above mentioned goal I determined the following research question: What effect do the campaigns against racism have on the citizens of the Czech Republic? The primary file was formed by comments of www.youtube.com web pages users. The contributors of these comments are a specific group which lay stress on their anonymity. This diploma thesis was to show the understanding of perception of the Roma situation in the Czech Republic. Furthermore it aimed to shed light on which attitude towards the Roma minority Czech inhabitants have.