groovy.codehaus.org Groovy is a scripting language based on the java platform.
www.jython.org Jython is a java-based version of Python.
www-130.ibm.com/developerworks/java For those who might not know that companies other than Sun are promoting java.
www.eclipse.org www.netbeans.org Because everyone should have a killer IDE.
www.opera.com Because everyone should hava a killer browser and because mouse gestures are addictive. (You'll never go back to Firefox.)