Abstract\\r\\nThis study investigates the use of internet resources and services as determinants of job performance among librarians at Kaduna State University (KASU), Nigeria. The research employed a survey research design, with 101 librarians as the target population. Data was collected using a structured questionnaire and analyzed through descriptive statistics (frequency distribution, percentages, mean, and standard deviation) and inferential statistics (linear and multiple regression analysis) using SPSS version 23. The results showed that librarians at KASU are effectively using internet resources, particularly for academic purposes such as accessing journals and responding to email inquiries. A significant positive relationship between internet resource usage and job performance was established. Academic resources, databases, and online training were identified as key factors contributing to enhanced job performance, with academic resources being the most influential. The study highlights the importance of internet resources in improving librarian productivity and recommends further investments in infrastructure, training, and resource access.\\r\\n\\r\\n