Training of public health professionals through web-based technology is rapidly increasing. This article describes one school of public health's effort to establish an online Master's program that serves students nationally and internationally. It examines the critical components in the design and implementation of distance education, including curriculum and instruction, management, facilities and finance, school support, technology services and support, student services, learning resources, and evaluation of the program. Focal components for the development of successful online programs recommended from the literature are administrative support, allocation of time for planning, provision of faculty and learner support, and matching technology to the needs of the learner. This article provides some guidance in the development of the organizational structure and the supporting components for online educational programs.