Concept Mapping

Personal Memory Manager (PMM) - Personal Memory Manager helps you spin-off from the top: manage your own knowledge and ideas. When you write a diary or weblog, study for an exam, work on a research paper, scenario or book, you can create or import your notes into PMM and map them out like sticky or yellow notes on one or many whiteboards (one for each aspect). You model and construct one integrated "body of knowledge" representing your mind. At any moment and from any bit, you can recollect and visualize the whole information architecture surrounding it, as context, and improve on or learn from it!
http://www.pmm.nl/

TouchGraph - TouchGraph allows for the creation and navigation of ineractive graphs. Ideal for orginising links, or mind mapping.
http://www.touchgraph.com/

SMART Technologies Inc. - SMART Ideas is concept mapping software for Windows that allows you to visually represent your ideas and their relationships using a variety of colors, shapes, symbols and links.
http://smarttech.com/

Concept Mapping Homepage - Description and example of the technique. Features links and basic references.
http://users.edte.utwente.nl/lanzing/cm_home.htm

How do Preservice Teachers use Concept Maps to Organize Their Curriculum Content Knowledge? - Brian Ferry, John Hedberg and Barry Harper. This paper reports on preservice teachers use of a concept mapping tool to create and modify concept maps about science related curriculum content knowledge.
http://www.ascilite.org.au/conferences/perth97/papers/Ferry/Ferry.html

Designing a Concept Mapping System User Interface - Roberto A. Flores-Méndez. Concept mapping users can be found on a wide range of areas and with different levels of expertise. Their main motivation is to create diagrams to represent and communicate information relevant to their domain.
http://pages.cpsc.ucalgary.ca/~robertof/courses/609.05/