The Open Source PL/SQL project is a collaborative effort by developers to create variety of Oracle packages - available free of charge. The purpose of each package varies, but all are developed based on a common set of coding standards for consistency.
Free web-based bug tracking system written on PHP. Some of the main features are: fully custom templates, advanced filters, LDAP support, email notifications, subscriptions, reminders, flexible permissions management, graphical project metrics, etc.