"The Node.js Event Loop: Not So Single Threaded"
Come learn how the event loop works in detail, how it affects the performance of your app, and how you can use this knowledge to your advantage!
This is the GitHub repo for Node.js' event loop itself.
A great talk on the event loop by Sam Roberts at IBM and Node.js core collaborator
A good blog post based on the above talks by Daniel Khan
Another great talk on the event loop, this time by libuv core collaborator Bert Belder