Beyond the comfort zone, what do you want to do next? Also:
java.net Poll: Which style of Java development would you like to learn more about?
Java Today: OpenJDK patch contribution review time, Jonathan Knudsen kicking butt, and design a bad API, go to jail?
Weblogs:Filthy Rich Clients goes to print, how JBI can improve your life life, and Unicode support in JavaFX Script
Forums: EJB interceptor and JPA listener limitations, JOAL mixer update, and calling protected EJB method from a servlet