jGuru - Customizable portal with online training, FAQs, regular news updates, and tutorials.
ACME Java Applets, applications, utility classes. ACME Java FAQ. Some bugs and deficiencies founded in JDK. Resources. http://www.acme.com/java/
The Artima Developer Community Collection of resources about Java, Jini, the JVM, and object oriented design. Includes articles, books, tutorials, FAQs, discussion forums, applets, source code, and seminars. http://www.artima.com/
Borland Java Community JBuilder's developer community with FAQs, documentation, and patches. http://dn.codegear.com/java/
Cetus Links Collection of links to articles, tutorials, and FAQs. http://www.cetus-links.org/oo_java.html
DevDaily Java Resources Applet and tutorial directory, with news and links to other resources. http://devdaily.com/java/
Focus on Java Resources from About.com. Features links, FAQs, tutorials, and articles. http://java.about.com/
Freewarejava.com Directory of applets, tutorials, references, and articles. http://freewarejava.com/
IBM Java developerWorks Tutorials, regular articles on best coding practice, news, and free software. http://www-128.ibm.com/developerworks/java/
ITtoolbox Java Portal with newswires, tutorials, large resource directory, events, and jobs. http://java.ittoolbox.com/
Jaagle Links to components, applets, and information organized by category. http://www.jaagle.com/
JADCentral PointBase portal with news, forums, code, and downloads. http://www.jadcentral.com/
Jars.com Review service of applets, applications, and JavaBeans. http://www.jars.com/
The Java Boutique A collection of applets, applications, and servlets. Also features developer news, tutorials, and reviews. http://javaboutique.internet.com/
Java Channel Collaborative database of reviews about resources. http://www.java-channel.org/
The Java Lobby Independent organization that supports the promise of Java's "Write Once, Run Anywhere" (WORA) promise. Includes news resources, product announcements, sample book chapters, and forums. http://www.javalobby.org/
The Java Memory Model Bill Pugh's collection of resources and a mailing list. http://www.cs.umd.edu/~pugh/java/memoryModel/
Java on HP-UX Technical information including news, tips, and downloads. http://hp.com/go/java
Java Performance Tuning Tips, resources, and monthly newsletter on improving the performance of applications. http://www.javaperformancetuning.com/
Java Sound Resources Resources related to API, including example code and FAQ. http://www.jsresources.org/
Java Touch Provides resources related to Java technology, EJB, Spring, Hibernate, Ajax, and XML. http://javatouch.googlepages.com/
Java Zone DevX community with discussion forums, FAQs, tutorials, and technical articles. http://www.devx.com/java/
java.blogs Group aggregation for Java-related weblogs. http://javablogs.com/
JavaJunkies Community for developers, allows users to post questions about the language and discuss topics with like-minded individuals. http://www.javajunkies.org/
Javapedia A wiki-style reference for the Java programming language and other related technologies. http://wiki.java.net/bin/view/Javapedia
JavaRanch Includes study material for Java certification, a discussion forum and articles geared towards Java beginners. http://www.javaranch.com/
JavaReference.com A resource site for the Java Community. Articles, examples, books and book reviews, forum, test center for Java certification, downloads, news. http://www.javareference.com/
JavaSide.com Directory of applets (with and without source), games, tricks, tips, news, and links. http://www.javaside.com/us/
JDocs.com Collection of online javadocs for many popular packages. Includes search and user contributed notes. http://www.jdocs.com
JMatrix.net A developer portal, featuring a variety of projects, forums, a knowledgebase, and news feeds. http://jmatrix.net/
JPackage Project providing a set of Linux RPM packages of software written in Java. http://www.jpackage.org/
JSurfer News, links, and forums. http://www.jsurfer.org/
JZ Ventures Java Links Collection of applets, tutorials, code, and API documentation. http://www.jzventures.com/jazjava.htm
KickJava.com Offers user provided examples of class/method usage. http://kickjava.com/
Light Development Open source applications and components for Java developers. SimplyHTML related tools. SocketTalk is a library of Java[tm] classes to simplify peer to peer communication through sockets. Resources. http://www.lightdev.com/
Marty Hall's Java Programming Resources FAQs, tutorials, compiler and browser download sites, documentation, book lists, and applet and class library collections. http://www.apl.jhu.edu/~hall/java/
Planet JDK Weblog aggregator for JDK community members. http://planetjdk.org/
Programmers Heaven Links, articles, tutorials, and message boards. http://www.programmersheaven.com/zone13/
programmingsite - Java section A collection of resources for the Java programming language. http://www.programmingsite.co.uk/modules.php?op=modload&name=Web_Links&file=index&req=viewlink&cid=1
SkillFox Featuring SCJP, SCEA, SCBCD mock exams, tutorials. Also Java EE articles and discussion board. http://www.skillfox.com/
SwTech.com Article and resource collection. http://www.sw-technologies.com/java/
Woodger's Java Resources Original articles on language-level issues, as well as client and server-side development. http://www.woodger.ca/jv_top.htm
XML Feeds :
Focus on Java Latest stories from About.com [RSS] http://z.about.com/6/g/java/b/index.xml
Usenet comp.lang.java.announce - news: