If you think Node.js is just a technology used by small start ups then you better listen to this 101 episode. Daniel Khan (@dkhan) – a member of the Node.js community and working group – answers a lot of questions on why large enterprises such as Walmart, Paypal or Intuit use Node.js to innovate. Daniel also explains the internals of Node.js, its event driven processing model, its non-blocking asynchronous nature, and how that enables a list of interesting use cases. We also discuss how to monitor and optimize applications running on Node.js and why that might be different for a developer as compared to an Ops team that runs Node.js in combination with other enterprise software.