I agree. So far this and others looks more like its disruptive solely within our echo chamber. What will be disruptive though is if Udacity or one of the other

I agree. So far this and others looks more like its disruptive solely within our echo chamber. What will be disruptive though is if Udacity or one of the others can become a credible source for teaching. All of this means nothing on a larger scale unless it gives you skills and abilities others trust.