Sia is an application for managing lots of pieces of inter-related
These ideas may be linked together via a third concept, for
example "Jill's address is 24 Penny Lane" would be represented as
24 Penny Lane
Almost any kind of information can be organised like this, e.g.
The network of nodes may be searched and edited, or drag and dropped. Right click to see what you can do. Nodes may be assigned classes and drawn in different colours.