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.
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.