LMS Collaborator - LMS Collaborator is a state-of-the-art learning management system designed to meet the need for corporate training, upskilling, and evaluation with flexible integration abilities.

Xmind - Xmind is a brainstorming and mind mapping application.

Open edX - Open edX is implemented mostly in Python (with some Ruby and NodeJS as well) and the code is being...

MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.

ILIAS - For several of my clients in the health care domain, ILIAS turned out to be an excellent choice.

Coggle - Coggle is a simple, beautiful, powerful way of structuring information.