2. MindManager. Professional software. Site has some good examples.

3. MindManuals Supplier of mind mapping software for MindManager.

4. MindPlugs. Plug-in for Mind Manager that allows live calculating of mathematical formulas.

5. MindMapper. Mindmapping software for Windows, and Palm

6. SmartDraw. Business graphics software that includes mindmapping and other functions.

7. MindGenius. Integrated with Microsoft Word, PowerPoint, Project Outlook.

8. ConceptDraw. Mac Classic and OS X versions also available.

9. FreeMind. Free software. Java based, so platform independent.

10. NovaMind. Excellent mindmapping software for Mac and Windows XP and Vista.

11. BrainMine Mindmapping software for Windows.

12. MyMind. Simple but versatile free software for Mac OS X.

13. Mind-Pad. Object-orientated mindmapping software for Windows.

14. DeepaMehta. Networked semantic desktop

15. i2Brain. Java, versatile mindmapping software

16. Inspiration. Mac and WIndows. Educational packages for kids and students.

17. MindVisualizer. New, straightforward Windows software, with many good features.

18. Mind42. Free collaborative online mindmapping software.

19. Mindomo. Web-based mind mapping tool. Create and edit mind maps in your web browser.

20. WiseMapping. A neat Web 2.0 mind map tool for creating mind maps on line.

21. SmartDraw. Graphic software with mind mapping capabilities.

22. OpenMiind. Matchware mindmap software for Windows with Microsoft Office integration.

23. Personal Memory Manager. Allows use of different "sheets" as way of organizing notes.

24. Cayra. PC software that combines mindmaps, concept and topic maps.

25. MindMeister. An online mind mapping tool, with as many simultaneous users as you like.

26. Wisdomap. Online mind mapping that includes multi-media and text attachments.

27. Meadmap. Online hierarchical note-taking system

28. DropMind. Online or stand-alone mind map with innovative visual qualities. Worth a look.