This thesis deals with affiliate marketing as one of the internet marketing tools. The work highlights the differences between affiliate marketing in the Czech Republic and the U.S. and also describes how to start your own affiliate program for entrepreneurs in the Czech Republic. The main objective of the thesis is to analyze and evaluate the success of the selected affiliate programs in the company AdFinance Ltd., which are promoted through its own affiliate network AdBenefit. Suggestions are part of the work, which could lead to an improvement in the operation of the affiliate network. The work is prepared based on literature, internet resources and own experience of the author's job position as affiliate manager.