Chuck Frey has being doing some great research in preparing his Mind Mapping Manifesto and has 10 reasons why mind mapping software should be the foundation of your personal productivity system

1. It’s unbelievably flexible.
2. It can make you more productive.
3. It can help you become a better creative problem solver.
4. It helps you to identify gaps in your information.
5. It gives you a powerful set of tools to think about your thinking.
6. You can reach clarity faster on key issues.
7. It helps you to make better decisions. Read more