Updated 06/11/2006: If you are trying to locate the Netron Project see my post "What happened to the Netron Project?"
Francois Vanderseypen has just published a new article about The Netron Project on The Code Project. "Netron Light" is a getting started guide to the Netron diagramming library for .NET. He has also release a special light version of the framework, which should be easier for novice users to get started with. You can download the light framework here and the article in PDF format here.
It is simply a lovely framework - well written and easily extensible.
I have created a couple of applications with this toolset: PeopleFinder (a six degrees of seperation visualiser) and TaskBuilder - a visual designer for creating Microsoft SDC and MSBuild scripts. TaskBuilder still needs a few more tweaks before I release it, but I thought I'd release a couple of screen shots of it in action:


Many Thanks Francois - keep up the great work.
Updated 06/11/2006: If you are trying to locate the Netron Project see my post "What happened to the Netron Project?"