Until this post I was never interested in Udemy, even though I've heard their name. And now I have to say WOW - what a great model and they're executing it well. I remember when Google opened adwords to agencies and people could start selling their SEM services - immediately creating a huge motivated salesforce for their product. The same for facebook.<p>I mean if you wan't to create value, first create value for others, and by enabling anyone to earn a living by teaching on their platform - that's huge! More power to them :)