I've written a set of tutorials on how to convert VisAD
standalone applications to collaborative applications.
Before you're frightened off, note that the simple
application in the walkthrough is converted in just
4 steps, and those steps will be roughly the same for
even the most complicated applications.
There are 3 main pages:
http://www.ssec.wisc.edu/~dglo/visad-collab.html is an
overview of the steps involved in making an application
is a step-by-step conversion of a simple standalone
http://www.ssec.wisc.edu/~dglo/visad-widget.html is a
brief discussion of making a graphic VisAD widget
I'd be happy to hear any comments, suggestions, corrections,
etc. you might have on these pages!