Netflix is a streaming service that allows users to create profiles, build personalized watch lists, and see what is popular among other users. It is considered a true "Web 2.0" application because it enables users to create an online video library and receives recommendations based on their ratings and viewing history. The document discusses how Netflix can be used educationally to expose students to foreign films and documentaries about various social issues, and to compare film adaptations to source material read in class.