I believe that in order to change the world we have to change ourselves, and there is much we can learn to make change happen. Here is a great free online Coursera course offered by Wesleyan University titled "How to Change the World". I am a huge Coursera fan and have already taken few of their free online classes and I highly recommend them.
The course description: "How can we use the things we share in common to address some of the most challenging problems facing the world? This course examines issues concerning poverty, the environment, technology, health care, gender, education and activism to helps us understand better how to initiate positive change."
Visit the course website and join me in this class: https://www.coursera.org/course/changetheworld
Here is the site if you want to browse other classes: https://www.coursera.org/
I will share and journal about what I am learning. So stay tuned!