The simplistic view would be to see the long tail in curricular terms: the interactive Web means that, in theory, every learner should be able to learn what they want when they want, without having to worry about the structural constraints that are inhere
Disruptive technologies, pedagogical innovation: What's new: Findings from an in-depth study of students use and perception of technology. Computers & Education 2008 50 (2): 511-524.