A couple of months ago at a SilvaFUG meeting I saw a demo of some graph visualization libraries – the kind of thing you use to create a graph showing nodes linked together according to various relationships.
The current “favorite” is the Flex Visual Graph Library (FVGL) Open Source Project.
Their Visual Graph explorer sample gives a nice overview of the functionality that’s available.
Anyway, I forgot to note this earlier, so I’m adding it now, though there’s a good chance this isn’t news to anyone who’s interested in this sort of thing.
(via email from Ted Patrick)