Sophia is a combination of a social network and a lesson repository. The learning "packets" are categorized and rated by users, so ideally you'd be able to search for any topic and find a variety lessons for it.
I suggest any teachers who are flipping their classroom should put their lessons on Sophia in addition to where they post them for their classes. It could be a great place to develop a following or to get feedback from other teachers and learners.
My few tutorials are posted on this page at the site. I tried to break free from the very academic lessons I was finding by posting my lessons from here on how to make games.
When I first stumbled on Sophia I thought it sounded exactly like the vision of learning described in Disrupting Class. I loved the book and was excited to see the predictions in it coming to life. I soon learned it was created by one of the authors of that book, making it a little less surprising. I have remained hopeful nonetheless. (Though I'm never motivated by accumulating little icons.) The fact that no one had heard of it at the workshop wasn't encouraging, but I still think it has potential and I will continue to support it.
Check it out first by searching for something you'd like to learn. I would love to hear if you find it useful. Next, think of how you could present your favorite thing to teach.