Social media are significant resources for teaching and learning. This monograph explores the opportunity of leveraging these media for citizenship, social justice and personal responsibility. It is a collection of insightful, focused and challenging papers, which encourages critical reflection and an exploration of opportunities related to the use of e-learning and social media. This is an academic publication (not a how to), but nonetheless it is full of examples of what peers are doing around the world, pre-school to doctoral studies. There are especially interesting pieces on building "presence" and a lot of insightful papers on learning and social justice. It is helpful for those who want to seriously reflect on what they really want to do to leverage social media for effective learning.