Matador – Node.js application framework from Medium
Medium is a blogging platform which just recently has reached more than 200 million users.
From the technology standpoint, this platform is being powered by many components, Node.js being one of them in the stack.
Matador is the MVC framework for Node.js applications and services used internally by Medium guys and now made open source. It imposes a specific structure to the Node.js application project and is battle tested by large numbers of Medium users.