my main useful links for Java programmers

http://stackoverflow.com/
http://www.javaranch.com/
http://www.java2s.com/
Java Book: http://www.java2s.com/Book/Java/CatalogJava.htm

SCJP mock test online: http://scjptest.com/
Java Tutorials - Table of Contents: cogeco.ca
Java Examples:  http://www.java-examples.com/

Russians:
http://javatalks.ru/
http://habrahabr.ru/hub/java/

Book publisher:
http://www.apress.com/
http://www.manning.com/
http://oreilly.com/

P.s I am just a newbie for Java programming, and at the moment I spend the most of my spare time to prepare for SCJP. Here are only the main but excellent websites. I'd like to pass the exam and to find work as a java programmer. I help to my friend to solve some tasks in java at times, but at the moment i can solve only 50% of exam's questions.