I looked at a number of web-based PM solutions in a rather non-scientific was. You know, just enough to manage a PMO:
| Redmine |
| OpenProj |
| Open Workbench |
| TaskJuggler |
| GanttProject |
| KPlato |
| GRR |
| eGroupWare |
| todoyu |
| Codendi |
| Collabtive |
| dotProject |
| KForge |
| jotBug |
| ProjectPier |
| Trac |
| Launchpad |
| OpenGoo |
| Project HQ |
The only one that passed muster was dotproject which has the additional flexibility of add-on modules.
| Redmine |
| OpenProj |
| Open Workbench |
| TaskJuggler |
| GanttProject |
| KPlato |
| GRR |
| eGroupWare |
| todoyu |
| Codendi |
| Collabtive |
| dotProject |
| KForge |
| jotBug |
| ProjectPier |
| Trac |
| Launchpad |
| OpenGoo |
| Project HQ |















