A simple and small downloadable Mindmapping programme with basic functions. Great for uncluttered mindmaps or students just learning to use them.
http://ictmagic.wikispaces.com/ICT+&+Web+Tools
"OKmindmap is a cloud-based mindmap by a talented group of researchers at Kongu National University and JinoTech, South Korea. This service is touted by its developers as the world's first pure Scalar Vector Graphics (SVG) based web mindmap technology. It is Freemind compatible, Web 2.0 feature-rich, and it has a Moodle plugin!"
"A great, simple, collaborative mindmapping site. Invite other users to share ideas together in real time. It uses html which means that you can use it with most web enabled devices. Sign in using a Google account."
"Organising information to find clarity is key for making good decisions. This collaborative mind-mapping tool allows multiple users to work together to put together their ideas and resources."
DebateGraph lets you explore and view individual debate and dialogue maps (and the graph of interrelated maps) through different types of bubble, box, tree and outline views that have complementary strengths, and that are accessed via the Views menu (above the map).