I've been watching Codecademy off and on for a while and I think your comment finally touched on something that I seem to have missed this whole time: you're not focusing on creating the content, you're focusing on making it easy for people to create and find high-quality content.

I see you have a signup form for course creators, but I'm not seeing any data on what exactly you want to focus on (is reverse-engineering out of scope, for instance?), whether or not course creators are paid, etc. I'd love to be involved, but just don't have enough information to go on yet; if you could fill in the blanks, I'd greatly appreciate it. Keep up the good work.