cPanel - With its first-class support and rich feature set, cPanel & WHM has been the web hosting industry's most reliable, intuitive control panel since 1997.
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
Webmin - Webmin is a web-based interface for system administration for Unix.
ImageJ - and Other Health Care
Vesta Control Panel - – What I love about Vesta is that it's fast and easy to use
ACD/ChemSketch - ACD/ChemSketch for personal and academic use brings the power of our structure drawing package to your home computer.