As one commenter brought up, I think you need to keep in mind who you are targeting. The real brilliance about Khan Academy, in my mind, is that they aren't ju

As one commenter brought up, I think you need to keep in mind who you are targeting. The real brilliance about Khan Academy, in my mind, is that they aren't just another video tutorial repository. They have a sophisticated back-end tracking system that allows teachers and parents to gauge the level of comprehension the students are working at. The other thing to note about Khan, is that the site is precisely intended for younger students in an effort to give them a solid foundational backing for further study. Personally, I don't think we need another resource for experienced developers. Experienced developers have a level of understanding that already allows them to be more critical of the tools and resources they choose. If you're truly interested in following the Khan model, you should be focusing on the core fundamentals that are often taken for granted in many of the other resources. That's not to say that you couldn't expand to more advanced topics, but starting at the lowest level and working up would be more beneficial in my eyes. Anyhow, interested to see what you get up there. Cheers!