Free linux groupware software for linux

ivata groupware is a free Groupware/Exchange/Intranet system. It comes with a web-based front-end.
Main features:
- find contacts in team and private address books
- post articles & notes
- comment on articles
- receive notifications via mail
- plan meetings and other events in the calendar
- access email via the web
Enhancements:
- This release fixes a bug in the startup script affecting Tomcat 5.0.x.
- You only need to upgrade if you are experiencing start-up problems on that platform.

NullLogic Groupware is a multi-user web-based groupware package designed for contact management and event scheduling, which includes additional features such as instant messaging, public forums, shared hyperlinks, file bases, a web e-mail client, and a simple order processing system.
The main goal of NullLogic Groupware is to make your data accessible to you from anywhere at any time without the need for special software to be installed on the client computer. All you need is a web browser.
Additional features include private messaging, public discussion forums, webmail, shared bookmarks, file sharing, call tracking, order processing, an XML-RPC API, and integrated POP3 and SMTP servers.
Enhancements:
- fixed zero domain ownership on newly created mail filters
- added ClamAV support to sample scanner script
- cleaned up some of the page transitions in mod_mail
- SQL subsystem was rewritten to handle an arbitrary number of cached queries

Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project. Horde Groupware bundles the separately available applications Kronolith, Turba, Nag and Mnemo.
Horde Groupware can be extended with any of the released Horde applications or the Horde modules that are still in development, like a file manager, a bookmark manager, a forum or a wiki.
Main features:
- Public and shared resources (calendars, address books, tasklists and notepads)
- Unlimited resources per user
- Translated into 41 languages including right-to-left scripts and unicode support
- Global categories (tags)
- Customizable portal screen including applets for weather, quotes, etc.
- 25 different interface themes
- Online help system
- Import and export of groupware data from other applications
- Synchronization with PDAs, mobile phones, groupware clients
- Integrated user management, group support and permissions system
- User preferences with global default values
- Strong integration, e.g. address book lookups in meeting planning, task due dates in calendar
- Platform independant, works on any web server with PHP support, i.e. Linux, Windows, Solaris, Mac OS X Server
- Abstract database support, e.g. for MySQL, PostgreSQL, Oracle, Microsoft SQL-Server
Calendar
- Day, week, work week, month and year views
- Recurring and all-day events
- Alarms with email notifications
- Simple and advanced search forms
- Meeting planning, also with other calendar applications
- Email notification about changed events
- Free/busy information exchange with other calendar applications
- Subscription of remote calendars
- Integration into external clients like Apple iCal, Mozilla Sunbird, Microsoft Outlook
- iCalendar and iTip support
Contacts
- Distribution lists/email groups, also across address books
- Simple and advanced search forms
- Customizable address book listings
- vCard support
- Address book pager (rolodex)
- Customizable contact fields
- Integration of existing address books
Tasks
- Priorities and due dates
- Searchable descriptions
- Email notification about changed tasks
- Integration into external clients like Apple iCal, Mozilla Sunbird, Microsoft Outlook
- vTodo support
Notes
- Fulltext search
- Character counter
Enhancements:
- A local arbitrary file deletion vulnerability has been fixed.
- The Oracle session handler has been rewritten.
- vTimezone support for iCalendar data and ORG support for vCard data have been added.
- Samba and Cyrus SQL authentication drivers, automatic Web root detection, signature dimming, and compatibility of generated ZIP files have been improved.
- Calendar support for non-ASCII character sets has been improved.
- vCard support has been improved.
- Brazilian Portuguese, Catalan, Dutch, Finnish, French, German, Portuguese, and Traditional Chinese translations have been updated.

POGI is the PHP OpenGroupware Interface. It allows PHP enabled websites to be easily integrated with the powerful OpenGroupware groupware server. Current versions of POGI work with PHP version 4 and 5.

LinuxCase project is an Case Management Software for Linux. You can Document social cases. It is possible to add delete or edit Users, add delete or edit Projects from Madates. You can make reports and add them to a Mandate.

The Software uses a Mysql-Database to store the Informations. The Software-Bases are QT and KDE.

Another Goal is to Comunicate with other Software how OpenOffice, Korganizer and the Kadressbook. So LinuxCase is a Groupware client to.

Linux distribution race is a cool car race for 4 players, cars are named by Linux distributions (Mandrake, SUSE, RedHat, Debian).

You can create maps in GIMP. Controls: WSAD, TGFH, IKJL, arrows.

GROUP-E project is collaboration software which integrates groupware, project management, and business server on one platform. The solution is based on a LAMP architecture (Linux, Apache, MySQL, PHP).
GROUP-E offers project management, transparent Samba (file server) integration, integration of Cyrus IMAP server with administration and personal SIEVE filters, support for SyncML 1.0, LDAP-based user management with single sign-on authentication, and LDAP contact databases.
Enhancements:
- A fix for an LDAP-Dump bug, new drag and drop support in the calendar module (ajax), automatic deleting of old emails in preferences (ajax), and various bugfixes for the SyncML Server (now all Symbian 60 mobiles works without problems, also syncevolution works now).

MURIX Linux is a distribution based on LinuxFromScratch for building bootable CD-ROMs.

Since you build it from source, MURIX should function on almost any hardware.