Monstra is a fast and small content management system written in PHP! Monstra is the best CMS to manage a small-business website.

Koken is a free content management system designed for photographers, designers and artists.

HTMLy is an open source Databaseless Blogging Platform or Flat-File Blog prioritizes simplicity and speed written in PHP. HTMLy can be referred to as Flat-File CMS either since it will also manage your content.

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.

FuelPHP is an open source web application framework written in PHP which implements the HMVC pattern.

Storytlr offers a single touch point for your online life in your own style. Easily post anything you find interesting, import your web 2.0 stuff and share your life online.

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.

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.

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

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

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

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

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

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

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