The main aim of this thesis is a description of options to use Facebook for advertising purposes. The first part of the thesis deals with social networks in general, analyses the reasons of their popularity, lists their types and mentions a couple of examples. Furthermore, the thesis compares advertising on social networks to traditional forms of advertising and analyses its advantages and disadvantages. Further part of the thesis is focused on the most popular social network in the world -- Facebook, and analyses its position in the Czech Republic, followed by a description of options to use Facebook for advertising purposes. The thesis also compares Facebook advertising to Google advertising. In the end, the thesis names a few real exampl...