This document discusses the use of the web for instructional technology purposes. It defines web-based instruction, web-based training, and web-based learning. It notes that web-based instruction utilizes the world wide web to create a meaningful learning environment. It also outlines some key advantages and limitations of web-based instruction, such as its cost-effectiveness and ability to reach large groups of learners from any location, but also issues around quality of information and utilization. Finally, it mentions some websites that are useful for teachers and students.