The best ads are so good you want to share them - you tell people about the ad on TV, you talk about the poster of magazine spread that you have seen - because it is controversial, because it is effective, because it is memorable. You are persuaded.
Why can't learning online be this good?
Inspired moments where you feel compelled to share a lecture, a tutors ideas, an infographic, a paper or book? Why must it all be so worthy, so dull, so predictable, so regurgitated and unoriginal?
When will liking and sharing a lesson, in whatever subject, put that lesson, or idea, thought, essay, talk, map to the top of a student's search so what they see makes them think, has them remembering and creating thoughts and ideas of their own?