A review of language learning motivation theories

http://www.qsm.ac.il/mrakez/asdarat/jamiea/12/eng-2-faris%20keblawi.pdf

The Neural Theory of Language and Thought

http://icbs.berkeley.edu/natural_theory_lt.php

Hacking language learning: Benny Lewis at TEDxWarsaw

Teaching English without Teaching English | Roberto Guzman | TEDxUPRM

How to learn any language easily | Matthew Youlden | TEDxClapham

One Simple Method to Learn Any Language | Scott Young & Vat Jaiswal | TE...

How to learn any language in six months | Chris Lonsdale | TEDxLingnanUn...