Xmind - Xmind is a brainstorming and mind mapping application.
LabVIEW - LabVIEW offers many of the functions you'd find in a traditional script-based programming language presented in a more intuitive visual interface ideal fo engineering.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
itom - itom is an open source software suite for operating measurement systems, laboratory automation and...
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.
PyLab_Works - PyLab_Works is a free and open source replacement for LabView + MatLab, written in pure Python.