Frank Shearar writes:
 > What about Ned Konz's Connectors, as a place to start?
 > 
 > * http://bike-nomad.com/squeak/
 > * http://squeak.pbwiki.com/Connector%20Tutorial

Connectors are a good as is GraphViz for layout. Both are
availible via SqueakMap. I use the two together to layout
control flow graphs in inspectors in Exupery.

Bryce