Best Interactive online tutorials for programming or programming related topics?

I've been enjoying online interactive tutorials lately, such as:

   http://vim-adventures.com/
   http://learngitbranching.js.org/
   https://www.codecademy.com/learn/python
   and
   https://www.udacity.com/course/intro-to-computer-science--cs101

Do you have any recommendations for more interactive tutorials like these? I don't care about language/framework/tool, I'm just interested in the interactive part as I find it's the most useful for learning.

Thanks