Backbone.js is a JavaScript library with a RESTful JSON interface and is based on the model–view–presenter (MVP) application design paradigm.

Modernizr is a JavaScript library which is designed to detect HTML5 and CSS3 features in various browsers, which lets JavaScript avoid using unimplemented features or use a workaround such as a shim to emulate them.

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

Open Real Estate is a free software for building websites of real estate agencies and realtors. It is based on Yii CMF - one of the fast working modern frameworks.

Nette Framework is an open-source framework for creating web applications.

Saurus is Free, Open Source Software for Building and Managing Websites.

ProcessWire is a free PHP5 content management system and framework (open source CMS/CMF) built to save you time and work the way you do.

Bludit is a simple web application to make your own blog in seconds, it's completly free and open source. Bludit uses flat-files (text files in JSON format) to store the posts and pages, you don't need to install or configure a database.

JSP Hosting on Linux Servers.

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

Private JVM hosting with pre-installed Tomcat server.

Tomcat Hosting on Linux Servers.

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

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

eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform written in Java.

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

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".