Sections in byzantium
Utilities to administer system resources, manage user accounts, etc.
Everything about Mono and the Common Language Infrastructure.
Software to use your modem in the old fashioned style.
Database Servers and Clients.
Debian Installer udeb packages
Special packages for building customized debian-installer variants. Do not install them on a normal system!
Packages providing debugging information for executables and shared libraries.
Development utilities, compilers, development environments, libraries, etc.
FAQs, HOWTOs and other documents trying to explain everything related to Debian, and software needed to browse documentation (man, info, etc).
Software to edit files. Programming environments.
Software for learning and teaching.
Software suitable for use in embedded applications.
Programs to spend a nice time with after all this setting up.
The GNOME desktop environment, a powerful, easy to use set of integrated applications.
Everything about GNU R, a statistical computation and graphics system.
The GNUstep environment.
Go programming language, libraries, and development tools.
Editors, viewers, converters... Everything to become an artist.
Software for ham radio.
Everything about Haskell.
Web servers and their modules.
All kind of interpreters for interpreted languages. Macro processors.
Machine readable introspection data for use by development tools.
Everything about Java.
The K Desktop Environment, a powerful, easy to use set of integrated applications.
Operating System Kernels and related modules.
Libraries necessary for developers to write programs that use them.
Libraries to make other programs work. They provide special features to developers.
Everything about Lisp.
Localization support for big software packages.
Programs to route, read, and compose E-mail messages.
Packages that mainly provide dependencies on other packages.
Miscellaneous utilities that didn't fit well anywhere else.
Daemons and clients to connect your system to the world.
Software to access Usenet, to set up news servers, etc.
Everything about OCaml, an ML language implementation.
Old versions of libraries, kept for backward compatibility with old applications.
Other OS's and file systems
Software to run programs compiled for other operating systems, and to use their filesystems.
Everything about Perl, an interpreted scripting language.
Everything about PHP.
Everything about Python, an interpreted, interactive object oriented language.
Everything about Ruby, an interpreted object oriented language.
Rust programming language, library crates, and development tools.
Tools for scientific work.
Command shells. Friendly user interfaces for beginners.
Utilities to deal with sound: mixers, players, recorders, CD players, etc.
Packages that are used by 'tasksel', a simple interface for users who want to configure their system to perform a specific task.
The famous typesetting software and related programs.
Utilities to format and print text documents.
Utilities for file/disk manipulation, backup and archive tools, system monitoring, input systems, etc.
Version Control Systems
Version control systems and related utilities.
Video viewers, editors, recording, streaming.
Web servers, browsers, proxies, download tools etc.
X Window System software
X servers, libraries, window managers, terminal emulators and many related applications.
Xfce, a fast and lightweight Desktop Environment.
Zope Application Server and Plone Content Managment System.