Alexandria is a GNOME application to help manage a book collection. It retrieves book information (including cover pictures) from several online libraries, allows you to search for a book (either by EAN/ISBN, title, authors, or keyword), can import and export data into ONIX, Tellico, and EAN/ISBN-list formats, generates Web pages from your libraries, allows marking your books as loaned, saves data using the YAML format, features an HIG-compliant user interface, shows books in different views that can be filtered or sorted, and handles book rating and notes.
acoc is a regular-expression based colour formatter for programs that display output on the command-line. It works as a wrapper around the target program, executing it and capturing the stdout stream. Optionally, stderr can be redirected to stdout, so that it, too, can be manipulated. acoc then applies matching rules to patterns in the output and applies colours to those matches.
SSHMenu is a GNOME panel applet that makes starting up a new terminal window with an SSH connection to a remote host just a click away. A preferences dialog allows you to add and organise hosts. Window positions and sizes can be set along with a profile for controlling text and background colours as well as font details. It also includes a version without GNOME dependencies that can be run as a small standalone window or swallowed into the panel of another window manager.
RubySlippers is a GUI frontend to the RubyGems package management system. It can view gemspec files, list installed files, install gems, query the RubyGems list, build Gems, and view documentation. This program uses the RubyWebDialogs GUI, and is built on the rwdtinker framework, so more applets can be loaded and unloaded. Context sensitive help is included.
rwdgutenberg is a book reading tool. It can find text files, build lists of text files, auto read texts, has context sensitive help, and can submit bug reports with one click. Additional applets can be downloaded. It includes the rwdtinker framework, and should not require any other downloads. It only requires that Ruby be installed, and should work on all platforms.