moregroupware is another web based groupware. It contains modules like contact management, webmail, calendar and some more and it will be extended day by day.
Gestionnaire d'Adhérents en Ligne Extrêmement Tarabiscoté mais Tellement Efficace
This PHP project was started to offer a tool to manage members and contributions for a french LUG (ALDIL) but it may suit the needs of most associations. Galette relies on the adoDB library to support both MySQL and PostgreSQL (and probably more).
phpShop is a PHP-based e-commerce application and PHP development framework. phpShop offers the basic features needed to run a successful e-commerce web site and to extend its capabilities for multiple purposes.
phpShop uses a nice development framework that allows web developers to easily extend its functionality through the use of modules. Its web-box architecture makes it easy to understand and work with, while providing powerful function management capabilites for your web application needs.
PHP Bookmarks/Favorites and contacts management (and other stuff). Booby is a multiuser, multilanguage, fully themeable web-based desktop application which provides online management for bookmarks/favorites, contacts, todo's, notes and news feeds.
Booby is based on a generic MVC design pattern. This pattern is based on items with a potential hierarchical relationship.