Xmind - Xmind is a brainstorming and mind mapping application.
Argus - Collections management for museums & galleries
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
Meow Playground - Imagine Club Penguin with cats!
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
CPPS.io - CPPS.io is a clone of Club Penguin, you will have the same experience as if Club Penguin was still around, with free membership custom features and more, come join CPPS.io a great alternative to Club penguin.