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Anchor is a super-simple, lightweight blog system, made to let you just write.

Jasmine is an open source testing framework for JavaScript.

CakePHP is an open-source web framework. It follows the model–view–controller (MVC) approach and is written in PHP, modeled after the concepts of Ruby on Rails, and distributed under the MIT License.

Adult PHP Hosting on Linux Servers.

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.

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".

Private JVM hosting with pre-installed Tomcat server.

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

Magnolia is an open-source digital business platform with a content management system (CMS) at its core.

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

JSP Hosting on Linux Servers.

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

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

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.