Steghide - Steghide is a steganography program that is able to hide data in various kinds of image- and...
Xmind - Xmind is a brainstorming and mind mapping application.
OpenPuff - OpenPuff is a professional steganography tool: HW seeded random number generator (CSPRNG)
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
SilentEye - SilentEye is a cross-platform application design for an easy use of steganography, in this case hiding messages into pictures and sounds.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.