In episode 1721 of hak5 host Darren explains what Crouton is, what chrooted environment means and how you can run Linux on a Chromebook.
This video demonstrates game play on a Toshiba Chromebook 2 running Xubuntu via Crouton using the Steam In-Home Streaming technology.
In this video tutorial YouTuber Johnny Phung shows how you can run other Linuxes than Chrome OS on Chromebooks using a software called crouton.
In this demo video Kevin Tofel of Gigaom shows how you can use Google's Chromebook Pixel with other Linux based operating systems than Chrome OS.