Free open office software for linux

GNOME Office is the premier suite of office productivity applications designed for the GNOME desktop environment.
Some of the applications also can run on Windows or Mac OS X. They provide powerful, efficient office productivity capabilities as free (GPL) software.
Main features:
- AbiWord word processor
- Gnumeric spreadsheet
- Gnome-DB data access components

Siag Office project is a free office package which consists of the spreadsheet Siag, the word processor PW, the animation program Egon, the text editor XedPlus, the file manager Xfiler and the previewer Gvu.
Siag is easy to use, yet infinitely flexible through multiple embedded interpreters and a plugin mechanism that allows other programs to run inside the main document. The supported interpreters are SIOD, Guile, Tcl, and Python.
Enhancements:
- Various fixes have been made to this release to make it buildable.
- Antiword has been unbundled.
- Formatting errors have been removed from the Italian dictionary.
- A version of o3read has been bundled.

Open Source in Tab is an extension which opens the pages source file in a new tab.

Opens the pages source file in a new tab. Has a preference to either open source in a new tab or existing tab.

open sTeam project is an environment for cooperative knowledge management.

sTeam provides a technical platform which allows groups of students, lecturers, and any other groups to construct and arrange their individual and cooperative learning and working space.

It consists of an object-oriented server connected to a database, and Web, Java, and other (FTP, SMTP, IRC, etc.) clients.

The server is event-driven and manages all user objects as well as the communication between the connected clients.

Features that were different from most other cooperation tools is the self-organisation and self-administration by the members within the virtual environment.

Open LMS project consists of a learning management system.
OpenLMS is a Learning Management System (LMS) made at the Department of Geography, NTNU.
The system is a fully functional LMS with support for group collaboration, file sharing, distribution of lectures, and other supporting features.
It is a good tool for distributing lecture notes to groups of students, and for facilitating collaboration for groups of students and teachers.
The system has successfully been used at the Dept. of Geography at NTNU in Trondheim Norway, for three years. It is continuously further developed and was released as OpenSource software last year.
OpenLMS now supports English (core language) and Norwegian. Steps has been taken to translate for further languages.
Scorm, Dublin Core, AICC etc. could be important factors in systems like OpenLMS and similar LMS/LCMS. Support for exporting objects for these standards will probably be incorporated into OpenLMS. HOWEVER - the focus of standards for the exchange of learning objects often overshadows the lack of a culture for sharing within the organizations in question.
This very resource-demanding part of a LMS/LCMS is therefore not focused at the present stage in the development.
Main features:
- upload lecture notes (any filetypes)
- distribute levture notes
- groupware / email to groups
- personal file archive
- assignment administration
- media archive and termbank
- organize webresources
- language support for norwegian, english and german (may easily be extended)