This paper deals with internet usage in teaching process. Internet is described as informational, communication, E-business and entertainment medium in the first part. Internet is a very young medium which is used very often in teaching process in the Czech Republic. Internet offers a lot of tools for this purpose. The paper presents some of them from theoretical and practical point of view. The second part of this paper is how teachers can use the Internet for marketing teaching. The Internet might be the tool for presenting new marketing ideas, giving students study materials and communicating with them. In many cases it might be very easy assistant. It is not important to use very complicated tools to reach good results.