Ninite - Ninite is the easiest way to install software.
Chocolatey - The sane way to manage software on Windows.
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Just Install - just-install - The stupid package installer for Windows.
Scoop - A command-line installer for Windows
Roboget - A free beta version app for Windows, by Mirinsoft