Changes in Swing for JDK1.3
java.sun.com/j2se/1.3/docs/guide/swing/SwingChanges

Sun Forte
www.sun.com/forte

"Powers of Observation"
www.webtechniques.com/archives/2000/10/java

RFCs: RFC1112 and RFC1458 cover multicasting
www.faqs.org

Swing Timers
java.sun.com/products/jfc/articles/timer