Magmi is a mass importer for the Magento e-commerce system. It is most useful when you need to import a big product catalog into Magento, even one with several millions of articles. Moreover, it has many capabilities concerning input data manipulation and an open and flexible plugin model for adding new capabilities.
Kronolith is the Horde calendar application. It provides a stable and featureful individual calendar system with integrated collaboration and scheduling features. It makes extensive use of the Horde Framework to provide integration with other applications. It implements a solid, stand-alone calendar system, allowing repeating events, all-day events, custom fields, keywords, shared calendars, iCalendar support, generation of free/busy information, and managing multiple users through Horde Authentication.