Jon Di Fiore:
http://www.jondifiore.com/
https://www.youtube.com/channel/UC2_3uqizwg_0l8RuuIeh-HQ
Nate Hook:
www.nathanhook.org
https://www.facebook.com/NateJHook/
https://twitter.com/TheNateHook
https://itunes.apple.com/us/album/progressive-overload/id1150310210
