MochiKit is a light-weight JavaScript library written and maintained by Bob Ippolito.
MochiKit HostingPivotX 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.
PivotX HostingPageCookery 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.
PageCookery HostingEmber.js is an open-source JavaScript web framework, based on the Model–view–viewmodel (MVVM) pattern.
Ember.js HostingWonderCMS is a completely free open source Content Management System, or in other words, a free website builder.
WonderCMS HostingdotCMS is an open source content management system (CMS) written in Java for managing content and content driven sites and applications.
dotCMS HostingJSP Hosting on Linux Servers.
JSP HostingeXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform written in Java.
eXo Platform HostingOpenKM is a Free/Libre document management system that provides a web interface for managing arbitrary files.
OpenKM HostingAmetys is a free and open source content management system (CMS) written in Java.
Ametys CMS HostingOpenWGA is Web Content Management computer software running on the Java Enterprise Edition Platform.
OpenWGA HostingApache Roller is a Java-based Open Source "full-featured, Multi-blog, Multi-user, and group-blog server suitable for blog sites large and small".
Apache Roller HostingTomcat Hosting on Linux Servers.
Tomcat HostingXWiki is a free wiki software platform written in Java with a design emphasis on extensibility.
XWiki Hosting