CGI Calendar is a CGI-based event calendar that does not require an SQL database. It supports unlimited events per day that can be sorted by time and by summary. Events are editable and can be described using HTML. It features month, day, and single event views, password protection, a UI controlled by HTML templates and CSS, and support for multiple calendars with a single installation.
XWiki is a WikiWiki clone written in Java that supports many popular features of other Wikis like the Wiki syntax, version control, attachments, security, and searching, but also many advanced features like templates, database and dynamic development using scripting languages (Velocity, Groovy, Ruby, Python, PHP, and more), an extension system and skinability, J2EE scalability, an XML/RPC remote API, statistics, RSS feeds, PDF exporting, WYSIWYG editing, an Office viewer and importer, and a lot more.
WeHelpBUS is a Web-based help browser for Unix-like systems. It is a set of CGI scripts that enables users to browse documentation, stored in various formats, using their preferred Web browser. Current formats supported include Unix man pages, Texinfo pages, Scrollkeeper documentation catalogue (help system of GNOME and KDE), information about installed RPM packages, and C/C++ header files.
Maitreya is an application for Western and Vedic Astrology (Jyotish). The Vedic part supports many parts of classical Vedic astrology (according to Parasara) and some items of Jaimini Astrology. The Western part supports, among others, the systems of Ebertin and Witte (Uranian astrology).
net2ftp is a Web-based FTP client, offering standard FTP client functionality using a browser. Users can also zip files, email them in attachments, edit code in their browser, or view code with syntax highlighting. Configuration options: restrict the access to one FTP server; ban IP addresses or FTP servers; set a daily consumption limit; and 3 kinds of logging. It works under PHP's Safe Mode. MySQL is optional (only required for logging and consumption tracking).