http://live.pirillo.com/ – Anders asks what is better: Mindjet’s MindManager or just about anything else?

For starters, you can try bubbl.us:

What is it? The simplest way to brainstorm online.

Why bubbl.us?It’s extremely easy to use and has almost no learning curve. Our intuitive user interface lets anyone brainstorm and organize ideas without getting in the way.

Features

• Share and work together with your friends.
• Brainstorm without touching the mouse.
• Display your ideas online or through email.
• Print your work.

Mindomo is another free online tool you can use for mindmapping:

Mindomo is a versatile Web-based mind mapping tool, delivering the capabilities of desktop mind mapping software in a Web browser – with no complex software to install or maintain.

Create, edit mind maps, and share them with your colleagues or your friends.

Mindomo brings clarity to your ideas by taking advantage of the right side of your brain, which is specialized in activities that are visual, creative, and intuitive.

Mindomo gives you complete freedom to access your maps in your Web browser from home, school or work.

Freemind is a free Java-based mindmapping utility:

FreeMind is a premier free mind-mapping (en.wikipedia.org/wiki/Mind_map) software written in Java. The recent development has hopefully turned it into high productivity tool. We are proud that the operation and navigation of FreeMind is faster than that of MindManager because of one-click "fold / unfold" and "follow link" operations.