Gamelan
Gamelan.com is a leading site for java articles, tutorials, news, discussions, and other resources. as a part of the developer.com network of sites, gamelan.com is aimed at professionals interested in development related topics.
http://www.developer.com/java/
Focus on Java
Focus on Java
http://java.about.com/
Cetus
Cetus links: 16604 links on objects and components / java / general
http://www.cetus-links.org/oo_java.html
Javacoffeebreak
Java coffee break features free java tutorials and articles. learn java now!
http://www.javacoffeebreak.com/
Javausergroup
Founded in 1998, the dutch java users group consists of business partners, software developers, application architects, technical managers, students, and new media developers that have a common interest in all aspects of java technology.
http://www.nljug.org/en/pages/events/content/jfall_2005/sessions/00021/
Sun
Java se community at a glance
http://java.sun.com/javase/community/index.jsp
Javaworld
Solutions for java developers
http://www.javaworld.com/
The Serverside
Java developers discussing java j2ee, java software, java programming and other trends in server side development
http://www.theserverside.com/