Applications

Office and DTP

Open Office (Office Suite) - http://www.openoffice.org

Libre Office (Office Suite with up to date documentation) - http://www.libreoffice.org

Scribus (Desktop Publishing) - http://www.scribus.net

Drawing and Diagram

QCAD (CAD) - http://www.qcad.org

ArgoUML (Diagrams and Modelling) - http://www.argouml.org

Inkscape (Vector Image Editor) - http://www.inkscape.org

Raster Image

Darktable (Open Source alternative to Lightroom) - https://www.darktable.org

Bruce Williams Photography - https://www.youtube.com/user/audio2u

Boris Hajdukovic - https://www.youtube.com/channel/UCMbDlOwmmQnkRmcb2_5WERg

GIMP (Open Source alternative to Photoshop) - http://www.gimp.org

SQL

Firebird (SQL Database) - http://www.firebirdsql.org

MySQL - (SQL Database) - http://www.mysql.com

Accounts

GnuCash (Accounting) - http://www.gnucash.org

TurboCASH (Accounting) - http://www.turbocash.net

Media

CDex (CD Ripper) - http://cdex.mu

Audacity (Audio Editor) - http://www.audacityteam.org

Avidemux (Video Editor) - http://fixounet.free.fr/avidemux

OpenShot (Video Editor) - http://www.openshot.org

Shotcut (Video Editor) - http://www.shotcut.org

Vidcutter (Video Editor) - http://vidcutter.ozmartians.com

Handbrake (Video Transcoder/Converter) - http://handbrake.fr

VLC Media Player - http://www.videolan.org