A cross-platform statistical package for econometric analysis
Computer Algebra System written in Common Lisp
Cross-platform Open-source 2D CAD
GPS log file viewer and analyzer
Scanning probe microscopy data visualisation and analysis
A circuit simulator with graphical user interface (GUI)
a parametric 3D CAD modeler
An interactive viewer for three-dimensional chemical structures.
Open source Health IT for the planet
Viking is a free/open source program to manage GPS data
JaxoDraw: Feynman Diagrams made easy!
Parse and decode METAR, TAF, SYNOP, BUOY, AMDAR and write data as XML
Jiddu Krishnamurti's Book of Life|Libro de la Vida