Abstract (in English) This study aims to investigate the effect of employing a multimedia e-book and educational weblogs on the performance of swimming techniques and cognitive achievement in aquatic sports among students of the Faculty of Physical Education – Zagazig University. The importance of the study lies in the expansion of technological innovations that provide interactive and flexible learning environments that support learners and address their individual differences. The researcher adopted the experimental method with two groups (experimental and control). The sample consisted of (70) fourth-year students (Sport Management specialization). The experimental group studied through an instructional program based on an interactive multimedia e-book and educational weblogs, while the control group studied through the traditional method (lecture and demonstration). Pre- and post-tests were conducted for the skill performance in swimming techniques (freestyle, backstroke, breaststroke, and butterfly), as well as cognitive achievement in technical aspects, aquatic sports regulations, and competition management and refereeing. The results revealed statistically significant differences between pre- and post-tests in both groups, in favor of the post-tests, with the experimental group outperforming the control group. It was also found that the improvement rates of the experimental group were considerably higher across all variables. The study concluded that the use of multimedia e-books and educational weblogs enhances learning effectiveness, increases student motivation and engagement, and helps improve swimming skills and cognitive achievement more effectively than the traditional method. The researcher recommended the wider adoption of these technological innovations in teaching both practical and theoretical courses in faculties of physical education, along with providing training programs for teachers on how to