XMind – Social Brainstorming and Mind Mapping – OpenSource
http://www.xmind.net/

Want to share ideas? The world’s coolest brainstorming and mind mapping software has now joined the open source community. XMind is now free software. This means when you want to use a fishbone in a spreadsheet, or put your photos and media files into a mind map, or reuse your Freemind/MindManager files, you’re free to use XMind. You can even add XMind/XMind Pro as plug-ins into your Eclipse-based enterprise environment. XMind.net is the best place to share your ideas and thoughts with the world. Adding an embedded viewer into your blog will enable more people to visualize and learn from your ideas. If you want to share privately, or do a brainstorm with selected friends, just upgrade to XMind Pro. Sometimes you have to focus in a specific branch, hide others and start a new mind map. You must want to “drill down” into the topic. We totally agree with you. Mind maps are now true hierarchical and layered. They call it “Topic As A Map”. Double-clicking works for creation and editing anywhere. Drag-and-dropping works for reorganizing, marking, map-shot, and adding attachments. It’s our design philosophy. Explode your ideas without any interruption. Write inline notes and record audio notes in your meeting minutes. You can even search your topic in Google and drag images back without leaving the working window. XMind Pro subscribers have full access to all updates, free online support, and all pro features, including privately sharing, inline presentation, exporting to PDF/Word/Powerpoint, Gantt charts with task topics, and much more. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog. This has been added to Social Informatics Subject Tracer™ Information Blog.