Aeronautics
LEAP: Linux-Equipped Astronauts Project, Linux Aviation HOWTO, Linux on the Space Station, The fplan Home Page
CAD
EDA, VHDL, CYCAS CAD 2D+3D for Linux, Amiga, NetBSD, LeoCAD, Linux CAD Links, LX-Viewer, QCad, SagCAD, Sillub Technology
Financial
Point of Sale, GCompte, GeniusTrader - Trading Systems, Backtesting and Ch, GnuCash - Accounting Software for Linux, Kapital, LibOFX: The open source OFX parser library, Linux Kontor, Linux-based Financial Software, Proven Software: Business Accounting Systems In Li
Health Care
Guatemalan Hospital to Run Linux, LAMDI Project - Linux Anesthesia modular devices i, Links to Open Source Health Care Resources, LinuDent - Dental Software Project, Linux And Open Source Medical Software News, Mumps2C Compiler Release Notes, Open Source Health Care Resources, Slashdot: Is There Medical Billing Software Availa, Synitech Incorporated OpenEMR
Linux for Biotechnology
"LfB - V1" includes over 1Gb of Biotechnology related software, all precompiled for Linux (x86), in easy to install RPM format. A range of state-of-the-art tools for sequence analysis, and molecular visualization and modelling.