IBM has now released the new version of the Lotus Notes Groupware and Collaboration Suite for Linux servers. Besides numerous enhancements and a new, Java-based architecture, the Red Hat Enterprise Linux 5 now provides a Linux distribution-based platform for the server.

Kontact, the KDE project's Personal Information Manager (PIM) is making progress en route to becoming a complete Groupware client.

The Citadel project offers an easy, stable, and versatile groupware alternative.

TiddlyWiki brings the spirit of the new Internet to a tiny scale. We’ll show you how to get organized with this wiki for one.

Leafnode is a Usenet server for small sites where just a few users need access to a large number of groups. The Leafnode server is designed to recover from errors autonomously and needs very little attention.