React Bits: A Compilation of React Patterns and Tips — A variety of React-oriented techniques, tips and tricks broken down into 50 digestable chunks.

Performance-Tuning a React App: A Case Study — A developer covers the various techniques he tried and tested while optimizing his 10,000 line React app, as well as what it taught him about diagnosing performance issues.

🚀 Add PDF Support to Your React App in No Time — A step-by-step tutorial on how to display and annotate PDF files inside your React app using the PSPDFKit JavaScript library. Features include cross-browser support (IE 11 and up), mobile optimized UI, and no server-side component.

Navigating Navigation in React Native — An opinionated take on the current state of navigation in React Native.

Building a React App to Work with Ethereum — A four part series (all parts now ready) on creating and working with ‘smart contracts’ on the Ethereum blockchain from a React app.

How Redux Works: A Counter-Example — An attempt to demystify Redux with a ‘backwards approach’.

ReactFest: A React Event in London on March 9, 2018 — The CFP is now open with proposals due by January 15.

Protected Routes and Authentication with React Router v4 — Create routes that only certain users can access based on their auth status using React Router.

Getting From Redux to a State Machine — Stent is a Redux-like library that creates and manages state machines.

Creating an Accessible React-Powered App — Covers ARIA, keyboard navigation, and more.

How to Work with Forms, Inputs and Events in React — How to capture text input and input via other form elements like input, textarea, and option.

react-beautiful-dnd: Attractive, Accessible Drag and Drop for Lists — We’ve linked this before but this big update adds mobile/tablet/touch support.