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.
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).
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
aaPanel - aaPanel is a simple but powerful control panel for linux server.one-click install LNMP/LAMP/OpenLiteSpeed developing environment and software
Salesforce Platform - Salesforce Platform is a comprehensive PaaS solution that paves the way for the developers to test, build, and mitigate the issues in the cloud application before the final deployment.
Avogadro - Avogadro is a free, fantastically easy to use molecule editor.