Rich Content Creation Modules

I was working on an LMS project (in Moodle) and wondered what types of modules or distributions I could find in Drupal that would suit the project. In my searching I ran into an excellent module and thought I would share and solicit feedback.

http://h5p.org/

It is billed as a Rich HTML5 Content Creator. The interface is simple and belies the complexity of the output. Best of all the tool is open source and for those that would rather avoid the GUI interface there are code samples hosted on GitHub that you can download and tweak.

I can see having plugins like this installed as standard modules to enhance almost any site.

Anyone have similar modules that they can recommend??