EasyLinks is a very easy and customizable Links4all script, you can use it to create links of the day pages or shared bookmarks for you and your friends.
A web based event calendar that does not require a database server. It is made to be easy to install and to be able to run on just about any typical ISP's server with PHP installed.
BLOG:CMS is the most complete, feature-packed, personal publishing system on the market, developed by Radek Hulán. It includes state-of-the-art weblog, forum, wiki engine, news aggregator (atom / rss), and photo gallery
XEmacs is a highly customizable open source text editor and application development system. It is licensed under the GNU Public License and related to other versions of Emacs, in particular, GNU Emacs.
Jease is an Open Source Content-Management-System which is driven by the power of Java. Jease means "Java with Ease", so Jease promises to keep simple things simple and the hard things (j)easy.
xinco DMS™ is a powerful Web-based Information and Document Management System (DMS) for files, text, URLs and contacts, featuring ACLs, version control, full text search and a fully web-based client.
Coppermine is a multi-purpose fully-featured and integrated web picture gallery script written in PHP using GD or ImageMagick as image library with a MySQL backend.
Tiki CMS/Groupware, also known as TikiWiki, is a powerful web-based Groupware and Content Management System (CMS), using the PHPexternal link, ADOdb external link and smart external link.
dotProject is a volunteer supported Project Management application. There is no "company" behind this project, it is managed, maintained, developed and supported by a volunteer group and by the users themselves.
SeedDMS is the continuation of LetoDMS because it has lost its main developer. SeedDMS is easy to use but powerful Open Source Document Management System based on PHP and MySQL or sqlite3.