This series is a follow-up to the series on blended learning from last fall. Those posts, based on a course I teach regularly, discussed the basic what, why, and how of blended learning. In this new series, we will be widening the focus, starting with a discussion of different available models of blended learning for both higher-ed and K-12 schools. That will lead into a discussion of the particular benefits and drawbacks of each model. We will also be looking at the related issue of how to tailor a blended learning approach to achieve maximum benefits for all students, through personalized learning and sticky content. Finally, we will look at the opportunities to expand the reach of the blended/online course through the use of mobile technology and micro learning.