SiteCake is a drag and drop CMS for simple websites. It lets you publish the content just by dragging it to your web page. It's CMS for static websites, with few pages only, to cover the niche below WordPress level of complexity.

Pimcore is a powerful and robust Zend Framework based PHP content management system (WCMS) for creating and managing digital content and assets.

MySQL Hosting on Linux Servers.

Mahara is an open source e-portfolio system with a flexible display framework. Mahara, meaning think or thought in Te Reo Maori, is user centred environment with a permissions framework that enables different views of an e-portfolio to be easily managed.

PRADO is an open source, object-oriented, event-driven, component-based PHP web framework.

Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine.

Hippo CMS is an open-source, dual licensed, Content Management System.

Liferay makes software that helps companies create digital experiences on web, mobile and connected devices.

Apache Roller is a Java-based Open Source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small".

Tomcat Hosting on Linux Servers.

OpenCms is an open source content management system written in Java.

dotCMS is an open source content management system (CMS) written in Java for managing content and content driven sites and applications.

Java Hosting packages on Linux servers.

LogicalDOC is a free document management system that is designed to handle and share documents within an organization.

Ametys is a free and open source content management system (CMS) written in Java.

Google Web Toolkit, or GWT Web Toolkit, is an open source set of tools that allows web developers to create and maintain complex JavaScript front-end applications in Java.