Examines the effectiveness and cost-effectiveness of online education based on a review of the literature. Discusses the three major variables contributing to success in online learning--instructional design, social matters, and students' personal factors; findings of case studies analyzing cost-effectiveness; and factors affecting…

Analyzes three applications of online learning and technology in South Korea: development of single-mode virtual universities; online education in conventional universities; and Web-based corporate training. Concludes with principles of online learning derived from experiences in implementing such environments. (AEF)