I like bubbl.us , which I’ve been using to brainstorm some of the material I’m working on for my Action/Interaction proposal. It’s a very basic mindmapping tool, but it has its good points

• it’s free
• it works (I’ve had all sorts of java -based nonsense with things like freemind in the past)
• I suppose it’s a plus that it’s web-based. It’s there when I have a moment/inclination to work. If browsers ever get the ability to keep and synchronise offline content from various online tools, I’m golden.

I see this as making an ideal tool for someone to develop further. I hope the people starting it can gain a large enough audience to keep going and market their site. Although this isn’t a traditional ‘office’ tool, it’s the thing that I find I can really get the writing and thinking going with.