Powerful desktop publishing software
A premier mind-mapping software written in Java
A portable, multi-platform, command-line driven graphing utility
FlightGear Flight Simulator: free open-source multiplatform flight sim
An interactive viewer for three-dimensional chemical structures.
2D & 3D TeX-Aware Vector Graphics Language
Toolkit for working with and mapping geospatial data
Digital Library Software
Display, convert, and edit raster image and vector image files
Draw vector graphics to scale using a descriptive language
The cross-platform library behind the Hugin photo stitcher
JaxoDraw: Feynman Diagrams made easy!
Quimup is a Linux client for MPD
Scientific Visualisation Made Easy
Image viewer used for sorting and other utilities
Earth orbits and satellite coverage display in 3D on your laptop.
Picture manager with focus on meta information (XMP, IPTC, EXIF)
show and edit eulumdat files
BASH tools and and Debian packages for Linux users and administrators
Full featured MUD server with all the trimmings.