Scapple is an easy-to-use tool for getting ideas down as quickly as possible and making connections between them. It allows you to make notes anywhere on the page and to connect them using straight dotted lines or arrows. It aims to recreate the experience of jotting down notes on a piece of paper.
The Visual Understanding Environment (VUE) is a concept and content mapping application, developed to support teaching, learning and research and for anyone who needs to organize, contextualize, and access digital information. Using a simple set of tools and a basic visual grammar consisting of nodes and links, faculty and students can map relationships between concepts, ideas and digital content.