Found this several days ago and find it interesting. Gibbon is “Playlists for Learning”. What you can do on this site after sign up is to choose what you want to learn, then Gibbon will serve you with several articles related to the topic.
Below example of page where I can learn about Storytelling.
After reading the article (chapter), you can choose to Mark As Learned each chapter which will be posted to your profile to mark the progress of your study. You can also choose to be a teacher by simply creating flows (playlists) so other people (students) can learn from you.
What I find this more compelling than regular learning site, is I can learn something through stories. Learning can be as easy and as fun.
Note: Here’s why I post this.