Your service operation isn’t one-size-fits all, so your IT service management solution shouldn’t be either
The Vivantio Platform allows you to focus on the IT service management tools that make sense for your organization’s unique service model: from incident, problem and change requests, to service requests, client knowledge and asset management
Open-Source Digital Experience Management Platform for Enterprises
... integrated Portal, Web publishing and content management, Document management, collaboration and multi-channel publishing as well as compatibility with all major IT infrastructure.
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Metadot Portal Server is a point-and-click website builder software for building powerful websites just with the click of a mouse. Includes content management, collaboration, My News Page like My Yahoo. Runs on Linux, Apache, MySQL and Perl