Visual Understanding Environment - Visual Understanding Environment (VUE) is a mind-mapping and concept-mapping tool.
TheBrain - TheBrain: The Ultimate Digital Memory
Protégé - Protégé is a free, open source ontology editor and knowledge-base framework.
Inspiration - Inspiration K-12 supports visual thinking techniques, enabling students to easily create and update...
Xmind - Xmind is a brainstorming and mind mapping application.
docassemble - docassemble is a free, open-source expert system for guided interviews and document assembly.