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Drupal is an open-source platform and content management system for building dynamic web sites offering a broad range of features and services including user administration, publishing workflow, discussion capabilities, news aggregation, metadata functionalities using controlled vocabularies and XML publishing for content sharing purposes.

PageCookery is the first public offering of single-user version of the open source microblogging program, PHP + MySQL based architecture is a set of safety, efficiency and stability, to "share", "discovery" for the concept of Web 2.0 solutions to micro-blog.

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.

PivotX is free software to help you maintain dynamic sites such as weblogs, online journals and other frequently updated websites in general. It's written in PHP and uses MySQL or flat files as a database.

JSP Hosting on Linux Servers.

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

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

Tomcat Hosting on Linux Servers.

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

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

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

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.

SmartClient is set of mobile and cross-browser HTML5 UI components combined with a Java-based Ajax framework, created by Isomorphic Software to build business web applications.