JavaBeat is the growing portal for the Java Technology resource. This website is founded on December,2004 since then its becoming more popular amoung the java community. It started with certification training materilas, then now it provides resources for most of java related frameworks and technologies. The following are the few popular links in the website: Java Learnings
Java Struts Tutorials and Articles
Hibernate Tutorials and Articles
Java Server Faces(JSF) Tutorials and Articles
Oracle's TopLink Tutorials and Articles
JBoss Seam Tutorials and Articles
Stripes Tutorials and Articles