PWM let you organize your project in a Web 2.0 way.
Project Web Manager is a free open source project for organizing your projects. You can create units/projects/task and monitor them through a Web 2.0 interface.
A trading platform including ERP, CRM, and accounting
JFire is a trading platform including ERP, CRM, accounting (full double-entry) and cross-organisation-trading written in Java based on J2EE, JDO and the Eclipse RCP. See http://www.jfire.net for more information.