smupcheck, which stands for Smart Update Checker, checks Web sites for updates automatically, even if they don't offer an RSS feed. It is a very basic tool, and does not offer advanced features such as checking password-protected Web sites, highlighting changes, or filtering results.
google-rfc-2445 is a Java implementation of RFC 2445 recurrence rules. RFC 2445 describes a scheme for calendar interoperability. This project implements core parts of RFC 2445, including a parser for recurrence rules and date lists and a mechanism for evaluating recurrence rules.
CalCore is an advanced, flexible calendaring component for Python. It allows the Python developer to write advanced calendaring applications either using their own event storage or integrating with external calendar servers. It features support for private calendars, shared calendars, resource booking, integration with iCalendar clients (Apple iCal, Mozilla Sunbird, KOrganizer) using the iCalendar protocol, invitation workflow, meeting support, including helper functions to look for free time, and recurring event support. It is being used as the core of Nuxeo's CalZope and CPSSharedCalendar products.
ZenTracking is a time tracking application aimed at giving managers the ability to have workers report their daily use of time. Users can be assigned to groups such as R&D, Sales, etc. Then time can be tracked based on groups, by day, month, and year. This is simple tool for time management reporting.
RealBasic Event Calendar allows RealBasic programmers to easily implement a fully featured monthly event calendar into their applications. Users and programmers can add, edit, and remove event dates to a graphical calendar, and then, using drag-and-drop, move the dates around easily and simply. Developers are able to easily manage the dates that are displayed and moved both by attributes as well as by user actions.