Ember.js is an open-source JavaScript web framework, based on the Model–view–viewmodel (MVVM) pattern.

Symfony is a PHP web application framework and a set of reusable PHP components/libraries.

Kirby is a file-based CMS with a beautiful web interface and thousands of customers world-wide.

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

MODX helps you take control of your online content. An Open Source PHP application framework, it frees you to build sites exactly how you want and make them 100% yours. Zero restrictions and fast to build. Super-simple templates in regular HTML/CSS/JS (any lib you want). Registered user systems and a killer community. Welcome to web-building nirvana.

Java Hosting packages on Linux servers.

XWiki is a free wiki software platform written in Java with a design emphasis on extensibility.

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

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".

OpenWGA is Web Content Management computer software running on the Java Enterprise Edition Platform.

OpenKM is a Free/Libre document management system that provides a web interface for managing arbitrary files.

JSP Hosting on Linux Servers.

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.