TUTOS is a tool to manage the organizational needs of small groups, teams, departments. Provides some web-based tools: a calendar for users and groups, address manage, bug tracking system, task management, and timetracking on projects. Supports PHP.   Code: PHP 5.0

Inquiry Tool is a web-based collaborative mMind tool designed to build scientific inquiry journals, with text notes, data graphs, and hand drawn predictions and trend lines. Journal's are described with XML, and the system uses FLASH, MySQL, PHP, and Perl   Code: PHP 4.0

Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks, notes etc. The PHP based collaboration suite is feature packed with multiple languages, interfaces, and more.   Code: PHP 4.0

Track and approve expenses. Users can log in and create expense reports and then add expense items. Admin user can then log in and approve items, or leave comments in the report. An email can be sent to the user. Uses PHP.   Code: PHP 4.0

PPCIS is based on PHP and a portable, modular, intranet system. It features a news page with topic filtering, user submission, and admin authorisation, a directory with support for internal lists, external contacts, and Web links, and a helpdesk.   Code: PHP 4.0