| Java at Sun | Oficial Java website. Here you colud download virtual machines, specs and documentatio related to Java. |
| Developer Java at Sun | Developer Java website. Tutorials, more documentation and source code samples. |
| Jakarta | Quality open source applications developed in Java. |
| Tomcat | Servlets and JSPs reference implementation server. |
| JBoss | Open Source J2EE server. |
| Maven | Maven is a Java project management and project comprehension tool. |