Hasn't been updated since 2003 - The Java Gui Builder program is designed to decouple the GUI building code from the rest of the application code, without hand-writing code. It allows one to describe the layout of windows and controls using an XML file. A full DTD was written to allow on-the-fly validation.
Using an XML file to describe GUI components allows users the flexibility to rewrite their windows so that they suit their needs, without opening up the innards of the program to the users.
Direct Web Remoting - DWR allows Javascript in a browser to interact with Java on a server and helps you manipulate web pages with the results. DWR is Easy Ajax for Java