Here are some links to information that was important during the design of the GUI:

General Swing

1. A Visual Guide to Swing Components
2. Laying Out Components Within a Container
3. How to Use Split Panes
4. Threads and Swing

JGoodies Forms

1. JGoodies Forms FAQ
2. The JGoodies Forms Framework (PDF)
3. JGoodies Forms Tutorial - Introduction
4. JGoodies Forms Tutorial - Basics
5. JGoodies Forms Tutorial - Quick Start
6. JGoodies Forms Tutorial - Building
7. JGoodies Forms Tutorial - Factories
8. JGoodies Forms References
9. JGoodies Forms Tips and Tricks

MiGCalendar

1. JavaBeans Guide (PDF)
2. Getting Started Guide (PDF)
3. AShape Developers Guide (PDF)
4. FAQ
5. MiG Calendar Tutorial (PDF)
6. Running the Examples (PDF)
7. Themes Developer's Guide (PDF)
8. JavaDocs

Ruby/JRuby

1. Embedding JRuby
2. Embedding JRuby - Code Examples
3. Deploying JRuby with Java Web Start

XTide

1. XTide Web Site
2. A Brief Introduction to XTide