Technological growth and development became important factors of some country's economy. Although, nowadays Internet represents important part of communication in everyday life of individual but of company. Spreading of Internet in meaning of speed, number of computers, number of users and available services, created new possibilities of life, education and business. A lot of people consider Internet as place of lossing time and socialization and too little as potential for personal progress and improvement of life and business, and overall world economy. Economic growth in the Republic of Croatia is not satisfying because of little investment in Internet technology but that level is growing. If in the Republic of Croatia level of using Internet technology increase, then this country will be closer to the other countries which have highly developed economy. The purpose of this paper is to show characteristics of Internet and the impact of Internet to the world economy's development.