Abstract: “The World Wide Web has a huge amount of e-learning resources in the various branches of science, and it is available in the form of textbooks, presentations, video tutorials, pictures and audio lectures. No doubt that these resources would help students understand academic courses easily, especially those courses that need training and practical activities, like the computer science courses. It also helps the instructor to clarify his ideas in an interesting and innovative way. Searching for the available and suitable resources in the World Wide Web is perhaps one of the most difficult and time consuming tasks, as it requires the exact specification of keywords that characterize each topic in the course syllabus. Collecting such material manually from scratch for each course in a specific domain of knowledge is considered expensive and time consuming effort. Ontology is the explicit formal specifications of the terms and relations among them in a specific domain. It defines a common vo”

Keywords: Automatic Retrieval of Educational Multimedia Resources, Information Retrieval, Knowledge Sharing and Reuse, Ontology-Based Annotation.