Microsoft Project 2000 showing a simple Gantt chart
Allegedly, the first software support tool for project management was developed by Datasaab for their computer D21 in the early 1960s. It was tailored to support the PERT model. Nowadays project planning software is widely used and abused.
Few packages are built around a sound project management method. What is even worse, e.g. Microsoft Project encourages counterproductive behavior by inexperienced project managers by offering as the default start-up view the Gantt chart. This encourages too early focus on task identification and scheduling vs. proper formulation of project objectives and final deliverables. So, such packages implicitly force upon an unsuspecting user an unsound project management process.
Many packages also offer e-mail integration, which encourages automatic assignment of tasks and due dates. This universally leads to counterproductive, date-driven behavior (see: critical chain) and may contribute to improper setting of team members' performance expectations .
http://www.tutos.org/ A powerful web-based multilingual tool to manage the organizational needs of small groups, teams, departments .... It contains calendar, mailbox, bug-tracking, project/product management, task management, document management,
http://webcollab.sourceforge.net A light-weight, easy collaborative web-based system for projects and project management; suited to tracking multiple projects and innumerable small tasks across an organisation of any size. Avoid reminder notes stuck all over your desk.
MrProject -- was a part of GNOME but MrProject has been renamed as Planner (See next entry). There is no new development on MrProject and all new development is now done on Planner.
Planner -- a GNOME tool for planning, scheduling and tracking projects and is released under a GPL license. This evolved out of the MrProject code. The current developers of Planner include the original developers who now work for Imendio http://www.imendio.com/ . Planner uses an XML file format or PostgreSQL database to store the project details and is written in C programming language. See http://www.imendio.com/projects/planner/ for more details on where to get the code or how to join mailing lists.
KPlato -- a project management application KOffice suite (in early stages of development), http://www.koffice.org/kplato/
Project/Open -- open-source, internet-based "Project-ERP", with an emphasis on project collaboration and financials, http://www.project-open.com/