Prefer - Professionals you need, from people you know

Xmind - Xmind is a brainstorming and mind mapping application.

Warmspace - Tech-powered conversations that transform relationships in work and life.

MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.

Introwise - All-in-one scheduling and business management platform for coaches, tutors and consultants to run their business online.

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