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Online delivery systems have been widely applied in distance education. To create a successful learning environment, distance educators and administrators are interested in how to integrate computer technology into teaching and learning at a distance. In this article, the author discusses various technological tools that support online learning and analyzes the attributes of online delivery systems. Ultimately, instructional media are just tools. Instructors or instructional designers need appropriate selection of technology media or tools based on their attributes. Instructional strategies, subject matter, and instructional theories are other relevant variables for creating a better learning environment for distance learners.