It's unnecessarily confusing and difficult to find a good collection of these resources because there are so many covering varying amounts of information, covering different versions, different libraries, etc.

I'll try to post what I can remember/find below:

https://github.com/timarney/react-faq

https://github.com/enaqx/awesome-react

https://github.com/markerikson/react-redux-links

https://thisweekinreact.com/

http://reactjsnewsletter.com/

React boilerplates meta-search: http://andrewhfarmer.com/starter-project/

Discord server: https://facebook.github.io/react/blog/2015/10/19/reactiflux-...

General JavaScript: http://javascriptweekly.com/

Shameless plug:

I couple of weeks ago I paired with one of the junior engineers in the company and we created a React/Redux application from scratch (consuming our API).

I streamed it on LiveCoding.tv and uploaded to YouTube as well.

You can check it out here: https://medium.com/@kensodev/screencast-1-1-session-building...

I actually just purchased this course a couple of hours ago. While it's not free, I certainly think it's worth $20.

https://www.udemy.com/react-redux/

Edit: I also signed up for the free React.js Fundamentals class from http://courses.reactjsprogram.com/

I bought the same course (for $10 though) and it definitely worth it. The only problem is the course flow is a bit slow for an experienced developer who already knows ES6. I played the videos on 1.5x the speed and that worked for me.

FREE ReactJS: Mastering Best Practices for Beginners and Advanced Developers at http://reactjs.co/

...and there's the rub, isn't it? "free" All kidding aside, if you can afford a few bucks, look at the Wes Bos series.

I didn't pay for his React series, but the free Redux series - while useful - I felt wouldn't have been worth paying for. Then again, I already knew React/Flux, so perhaps I wasn't really his target audience.

this comes highly recommended from a friend http://courses.reactjsprogram.com/p/reactjsfundamentals