SABnzbd - SABnzbd is a free/open-source cross-platform binary newsreader written in Python.
Xmind - Xmind is a brainstorming and mind mapping application.
NZBGet - The most efficient usenet downloader.
MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.
GrabIt - GrabIt is a free application that enables you to easily find and download content from Usenet news...
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.