This paper analyzes the influence and predictive effects of knowledge management on job satisfaction. The aim of this paper is to develop a model based on the effects of knowledge management on job satisfaction. The data were obtained by interviewing 520 managers of all levels from manufacturing enterprises in Serbia. The results showed that knowledge management has a complex influence on job satisfaction. It negatively affects the dimensions of Salary, Promotion, and Supervision and positively influences the Additional Benefits dimension, while having combined effects on the other dimensions. In a working environment where knowledge management levels are high, employees may perceive their salaries, rewards, and promotion opportunities as inadequate. This is because they feel they deserve more due to their knowledge, ability, engagement, and the enterprise's success. Serbian enterprises are often unable to pay their employees higher salaries. The theoretical importance of the results is precisely in the fact that the individual relations of the observed dimensions are determined and that the desired model is developed. The practical significance of the work is that leaders and managers, based on these relations, can see the possibilities and ways to improve certain aspects of knowledge management and job satisfaction.

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The research aims to determine the extent to which the gender and age of adolescents have influenced their habits when using the Internet, as well as the purpose for which the Internet is used the most. For the needs of the research, a questionnaire "Internet use habits" was designed, which consists of two dimensions. The first dimension looks at the Intensity of Internet Use, and the second looks at the Purpose of Internet Use, through nine items: Entertainment, Social Networks, Games, Trivia, Tutorials, School, Forums, Adults, Blog, and Blogging. The sample in the research was designed to include students in grades 5-8 of primary school and secondary school students, aged 11 to 18. Respondents were selected using a random sampling technique (N = 744). The results showed that gender did not affect the formation of Internet use habits, as opposed to age, which significantly influenced the formation of these habits. The research also highlighted that the Internet was mostly used for fun, but also that the interest in educational content on the Internet had increased. The pedagogical implications are aimed at forming a relationship between professors and students based on students' attitudes toward Internet content. Since the Internet is something that adolescents use on a daily basis, it should be used as a tool in working with them.