Pachyderm is a web-based rich-media interactive presentation authoring and publishing system that meets most accessibility requirements. It works off of an extensible template system. Pachyderm allows users to upload multimedia (images, audio, video) and publish them online using pre-defined templates or download them for use on their own website, or on a CD or DVD. Version 3 (released June 2014) now also supports iOS and other non-Flash devices using HTML5, and appears to be a major upgrade. Requires Apache HTTP or Tomcat web server installation (WAMP or MAMP is fine).
Joomla is an open source content management system (CMS), enabling users to build websites and applications.
A simple web-based HTML and CSS editor geared toward beginners. Thimble splits your window into two panes - one is the editor and the other displays a preview of your work. Includes tutorial projects for learning to code. Offers option for webpages to be published by thimble.webmaker.org.
Ruby on Rails is a web development framework written in the Ruby language. It is intended to be used with an Agile development methodology that is used by web developers for rapid development.
Wikidot is a web application service that allows you to create a traditional wiki, forum, or blog. Wikidot is also a large community with an active question and answer forum.
Jekyll is a simple, blog aware, static site generator. It takes a template directory containing raw text files in various formats, runs it through Textile or Markdown and Liquid converters, and creates a complete, static ready-to-publish website suitable for serving with your favorite web server. Jekyll also happens to be the engine behind GitHub Pages, which means you can use Jekyll to host your project’s page, blog, or website from GitHub’s servers for free.