The theme of this final paper is "Internet in tourism".The aim is to deal with the concept of the Internet in tourism and show how the Internet, social networks and online travel agencies affect aspects of tourism, the market and how they can help in the development of tourism and promotion of a tourist destination.Precisely via the Internet, with one click and effortlessly, it is possible to determine which tourist destinations are desirable and what is in trend. Given that tourism today is a very popular activity of most people in the world, and one of the main sources of income in many countries, it is very important how and how because it greatly affects the choice of the desired tourist destination. Thus, in the promotion of tourism via the Internet, internet marketing and promotion via social networks are of great importance. Through this final paper, I have shown how tourism and the Internet have developed throughout history, without which we cannot imagine everyday life today.