Online Education is a comprehensive exploration of fully online and blended teaching platforms, addressing history, theory, research, planning, and practice. As colleges, universities, and schools around the world accelerate their adoption of large-scale technologies and traditional class models shift into seamless, digitally interactive environments, critical insights are needed into the implications for administration and pedagogy. Written by a major contributor to the field, this book contextualizes online education in the past and present before analyzing its fundamental changes to instruction, program integration, social interaction, content construction, networked media, policy, and more. This substantively revised second edition examines recent developments in services and implementation, from the expansion of synchronous online learning experiences to the widened availability of generative artificial intelligence software, while updating its research foundations and case studies. A provocative concluding chapter speculates on the future of education as the sector becomes increasingly dependent on advanced AI systems, massive cloud computing, biosensing tools, and robotics.