Compendium vs Nestor - knowledge organization tools
Spent some time trying to figure out the key features of two knowledge-organization tools, Compendium and Nestor. Here is an initial report on them.
Compendium
http://compendium.open.ac.uk/institute/ Compendium has a database in the background so all the searches are faster and more efficient, plus it is strongly based on argumentation theory. That means that you can easily map different positions in relation to their role in an argumentation, and then use this structure to retrieve things like "who supports/opposes what"
Nestor
http://www.gate.cnrs.fr/~zeiliger/nestor.htm Nestor instead links browser information into a concept map. It lets you reorganize web material very efficiently, export to HTML, and annotate portions of the material. Seems very well suited for doing online research.
See also
A lot of useful information on such topics can be found on the 'Knowledge Cartography' book.




