If you think much has changed, it hasn't.
The means of delivery may have changed, but we are still reading words. And where there's video today there was the lecture before. Or the topic-focussed discussion, this forum feed, a tutorial.
Two modules in I came across this.
As valid today as it was in 1990.
Not that I was reading it then, I finished my first degree in 1984. This was something my daughter had been sent by her grandfather; she's 14. it's a foreign language to her. For any words she writes out long hand a thousand are typed into Facebook or Tumblr.
The lessons in here are straightforward; it pays to take you time and put in some effort.