There was a really nice demo at NetBeans Day in San Francisco that showed off the Swing App Framework, NetBeans and Flickr. It showed how really easy it is to create a cool Flickr-based app. More...
Arun Gupta, a Technology Evangelist for Web Services and Web 2.0 Apps at Sun Microsystems, has created a nice screencast that focuses on building map mashups with jMaki. More....
If you are interested in modern computing hardware (chip multi-threading, etc) - then this presentation should appeal to you. It provides an overview of modern CPUs and why Java developers should care about these new versions of hardware.
Adding Functionality To Buttons : A Beginners Guide. This is a new Java tutorial for beginners. It teaches how to build a simple GUI with back-end functionality. The basic tutorial shows how to use Matisse to build GUIs