I've found the Java Posse podcast to be a great way to catch up on the sometimes confusing world of Java technology. The show is hosted by a panel of four Java professionals who each have many years of Java experience. They interview luminaries of the Java community, comment on industry news, and respond to listener feedback. All of the panel members are articulate, and the show is fun to listen to, assuming you have an interest in the subject matter. I recommend that all Java developers give the show a try.