To add, radium has this nice comparison readme too: https://github.com/FormidableLabs/radium/blob/master/docs/co...

Thanks, I hadn't seen many of those before. This one is actually pretty close: https://github.com/RickWong/react-inline-css

react-styl (https://github.com/nick/react-styl) looks interesting too, but it looks like any preprocessing needs to be done on the client. I'd be worried about performance with that approach on a production app.