Well they announced FREE courses on Bitcoin related and other Alt coins for topics..here is the link:P
http://coinacademy.co/curated-collections/Well I've not done any of them yet? Anyone? or is it pretty much for beginners?
anyway for your consideration
Searing
You can learn from scratch to a professional coder from there,I personally recommend using it.Many of my friends as well as me are learning variety of courses there.