In graduate work I dealt with the theme of Internet marketing and advertising on the portal eMedjimurje.hr case. In the first part is presented an introduction to the topic of work. The second part describes the concept, purpose and forms of Internet marketing.In the third part I noted the advantages of advertising, Internet marketing, elements and content of Web pages. In the fourth part of the paper I described consumer behavior on the Internet. In the fifth part describes the advantages and problems of Internet advertising and Internet shops that are divided on the benefits for consumers and benefits for sellers. In the past there was only not traditionally targeted advertising in newspapers, radio, magazines, television and direct mail. The Internet has changed the rules. The set of work I noted the new and old rules of marketing and PR. Internet in Croatia becomes present in all forms of business, including advertising on the Internet is becoming increasingly important as described in the seventh section of the work. In the eighth part I described the Internet advertising in the Republic of Croatia on the example of the portal eMedjimurje.hr. I explained the vision, mission, target portals, and using free Internet tools presented analysis and research in comparison to other portals in Croatia. In the ninth part I made a conclusion. The aim of this work is to describe ways of advertising, the existing problems, advantages and assessment why companies need to advertise in order to be competitive and successful business in the future.