> That said, it seems that startups like edX, Coursera, etc. have not really been successes. So I'm skeptical that big changes are coming soon. In what way are

> That said, it seems that startups like edX, Coursera, etc. have not really been successes. So I'm skeptical that big changes are coming soon. In what way are you measuring success here? They have not replaced traditional education/colleges but its very likely that a larger percentage of the people on this site have purchased and learned something from a online technical course.