The need to deliver teaching material in medical education using the internet is compelling in view of the many advantages that the internet provides. The internet has enabled organizations, in particular institutions of higher education to conduct various courses entirely electronically and without regard to physical geographical boundaries. The term CAL is used to denote the employment of the Internet for the delivery of teaching material, conduct of discussion, as;sessment of performance and interaction between students and teachers. This study reviews reports of the use and evaluation of Computer-Aided-Learning (CAL) in teaching various major disciplines in medicine.