React is a UI library developed at Facebook to facilitate the creation of interactive, stateful & reusable UI components. It is used at Facebook in production, and Instagram.com is written entirely in React.

https://scotch.io/tutorials/learning-react-getting-started-and-concepts

The application I'm currently working will need an advanced search feature that is backed by Algolia. Searches shouldn't hit the application server but use Algolia's JavaScript client. I'm in the process of learning React to build this. The link above was very helpful get started with this new technology.

I'm not ready to blog about my application just yet, but you'll hear more about it as soon as it goes live.