MindMeister and other mind mapping software helps you get your thoughts in order, see the clear structure of a topic and re-imagine or best to structure assignments and exam answers (if you create mind maps the old fashioned way with pen and paper). Most people think visually and so it often helps to sketch out an idea from its broad sections into the fine detail, arranged around the main topic in a hierarchical way that makes the connections or relationships between them clear. Creating mind maps can help you understand the structure of an assignment or revision topic better, unleash your creativity, and help you to collaborate, solve problems, and think critically.
Anyone who thinks better visually.
Many mind mapping tools are available from the Application Jukebox; others are available to download for free online.