Ever since I started taking online courses(edX,coursera,udacity) my knowledge improved immensely. I am excited to get home from work and watch the classes and try the homeworks.

I think this may be the most revolutionary technology to come out of the USA since computers themselves: extremely high quality distance learning.

Educating the masses is the most difficult mission in history and these courses do the job. I guarantee you that if you take Coursera, edX and Udacity courses you will see the world differently.