Virtualmin - It includes numerous features not in the GPL version (like script installers, resellers, HTML editor, an improved UI, mobile access, spam and virus filtering).
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
ChemDraw - ChemDraw - The Gold Standard for Chemical Structure Drawing and Research Publications.
Jmol - Jmol is a free, open source molecule viewer for students, educators, and researchers in chemistry...
ChemDoodle - Chemical drawing and publishing software for desktop, web and mobile. Affordable and used by thousands of scientists around the world. Free trial available for immediate download.
aaPanel - aaPanel is a simple but powerful control panel for linux server.one-click install LNMP/LAMP/OpenLiteSpeed developing environment and software