Here is a listing of other sites that have been recommended to us.
- Java Lobby @ DZone A site dedicated to the politics and recent events in the Java world - with no influence from Sun and Oracle.
- ONJava An independent web site focused on enterprise Java development. Provides development tools, resources, and articles covering EJB, JSP, P2P, Java design, XML, wireless/consumer Java, multimedia Java development. (The site no longer gets updated.)
- Learn Java Features original articles, free Java source code, Java programming contests, chat, forums, tutorials, free mock exams for SCJP, SCJD, and SCWCD certifications, and tons of categorized links.
- Scrum Methodology This site contains all sorts of resources for one of the current (2008) Agile methodologies.
- Artima.com - a Community of Object-Oriented Developers
- javapractices.com - Concise presentations of java programming practices, tasks, and conventions, amply illustrated with syntax highlighted code examples.
- ITtoolbox Java Content, community, and service for Java professionals. Provides technical discussion, job postings, an integrated directory, news, and much more.
- vogella.de - Tutorials around Java, Eclipse and Webdevelopment, focus is on Eclipse Plugin and Eclipse RCP development.