Achievo
A web-based project management tool, offering basic project and customer management. (PHP)

Core Advanced Project Manager
PHP-based tool for basic task management (TODO list) of multiple people and multiple projects.

Double Choco Latte
Issue tracking and project management. Part of Gnu Enterprise project.

Taskjuggler
A tool to schedule and track complex projects. The textual project description is compiled into schedules, status reports and GANTT charts. You Would also find info related to Taskjuggler, project, management, tool, Linux, UNIX, system, operating, systems, kde, frontend, output, xml, html and much more.

Austin
C++ parser for which converts XML-based project files into Gantt charts

dotproject
BSD-licensed PHP-MySQL web-based project management application, with Gantt chart support You Would also find info related to nuke, postnuke, postnuke, free, community, php, portal, opensource, open source, gpl, mysql, sql, database, project, task, management, work, control and much more.

FUTURe Project Planner
A time management application written in Java including todo lists, Gantt charts, diaries, pert charts. Currently in early project stages.

Gantt Project
Graphical Java program for editing Gantt charts. GPL You Would also find info related to GanttProject, ganttproject, resources, planner, project, chart, java, task, gantt, people, date, duration, scheduling, diagram and much more.

PHProjekt
Web-based groupware tool which includes calendar, project-management, time-card management, PDA synchronization, email, voting system and personal to-do list management You Would also find info related to PHProjekt, PHProject, groupware, calendaring, project management, helpdesk and much more.

Planner
Open source project planning and management application for the GNOME desktop.

Project Management Interface
Web-based project management application. Provides portal management to a large number of coarsely-managed projects. You Would also find info related to project management, software, pmi, byrne reese, gpl, projects, project utilities and much more.

Project/Open
Web-based project resource planning system, with project rooms, and tools for managing clients, invoices, time, and cost. Designed for the advertizing, IT consulting, translation and knowledge management sectors.

proManager
A PHP-based project manager / todo list with a recursive task and user tree, task-related forums and notes. Runs on various databases. You Would also find info related to web php project task manager work online planner trouble ticket and much more.

PyGantt
Reads a project description from a XML formatted file and outputs an HTML Gantt diagram.

ToutDoux
A project manager for GNOME part of the GNU project. French/english. You Would also find info related to ToutDoux, GNOME, XML, GNU/Linux, GNU and much more.

Track+ Tracking System
Tool for tracking of issues, tasks and other items such as support calls, problem reports, bugs, action items, risks, requirements, and work packages. Uses web browser as client, servlet based web server, and SQL database. Written in Java, (JDK 1.2 or beyond). Tested with Linux, Solaris, HP-UX, and Windows.

TUTOS Groupware Suite
Web-based groupware suite. You Would also find info related to ERP, CRM, Bugtracking, Scheduling, Groupware, Calendar, Projectmanagement and much more.