Last two years was not only the Czech new cars market greatly suppressed by the global economic crisis. Especially in this time was necessary for the survival advantage using all the possible tools that could help sustain sales. This thesis aims to completely map the ever-evolving internet marketing, both in terms of actual campaigns, internet advertising theory and practical experience in the course of writing the work yet to be tried and evaluated realistically. The work will analyze the various competing campaigns and evaluate their success on which we get to the comparison of theoretical and real effective campaign plane.