This paper describes architecture, design, and implementation of Multitutor a Web-based environment for the development the e-learning courses and for the use of them by the students. Multitutor is designed as a Web-classroom client-server system, ontologically founded, and is built using modern intelligent and Web-related technologies. Experience with Multitutor so far shows that both teachers and learners have positive feelings about using them as a support tool for creating and learning different courses. In order to illustrate the design of the system, this paper presents some details of Multitutor architecture.