Here are a few resources that you might find interesting. Some are about NLP, some are more general, all are worth a look.

 

Discussion Groups  
Facebook NLP Practice Q&A https://www.facebook.com/groups/349239785839607
Facebook NLP Meta Model Q&A https://www.facebook.com/groups/nlpmetamodel
Videos  
Frans de Waal talks about his research into empathy and an innate sense of fairness in animals. https://www.youtube.com/watch?v=GcJxRqTs5nk
My YouTube channel with conference talks, presentations, online training, testimonials and so on. https://www.youtube.com/c/geniusnenlp
Audio  
Listening with Richard Mullender, from BBC Radio 4 Listening
A parole hearing, from BBC Radio 4 Parole hearing extract
The full parole program, from BBC Radio 4 Parole full program
Snowflakes - Hesitation, Deviation and Repetition, from BBC Radio 4 Snowflakes response
Downloads  
An introduction to NLP's language models, the Milton Model and the Meta Model NLP Language Models
Research Papers  
The Neuroscience of Gapped Learning https://www.geniuslearning.co.uk/research/98-the-neuroscience-of-gapped-learning
Mirror Neurons and the Simulation Theory of Mind Reading, Gallese and Goldman, Trends in Cognitive Sciences, Dec 1998. http://web.media.mit.edu/~cynthiab/Readings/Gallese-goldman98.pdf
Recalling Routes around London: Activation of the Right Hippocampus in Taxi Drivers, Maguire, Frackowiak & Frith, The Journal of Neuroscience, Sept 1997. http://www.jneurosci.org/content/17/18/7103.full
Differential Consolidation and Pattern Reverberations within Episodic Cell Assemblies in the Mouse Hippocampus, Oşan, Chen, Feng & Tsien, PLOS, Feb 2011. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0016507
A picture is worth a thousand lies: Using false photographs to create false childhood memories, Wade, Garry, Read, Lindsay, 2002 http://web.uvic.ca/~dslind/sites/default/files/Wade,Garry,Read,&Lindsay2002.pdf

The Eyes Don’t have it: Lie Detection and Neuro-Linguistic Programming. Wiseman and Watt, 2012.

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0040259

The evidence for NLP (ICPR Spring 2019) Lisa de Rijk, Lucas A.C. Derks, Bruce Grimley & Jaap Hollander

https://shop.bps.org.uk/publications/journals-and-periodicals/international-coaching-psychology-review-vol-14-no-1-spring-2019.html

The need for neuro-linguistic programming to develop greater construct validity (ICPR Spring 2019) Bruce Grimley

https://shop.bps.org.uk/publications/journals-and-periodicals/international-coaching-psychology-review-vol-14-no-1-spring-2019.html

Neuro-linguistic programming: A review of NLP research and the application of NLP in coaching (ICPR Spring 2019)​ Jonathan Passmore & Tatiana Rowson

https://shop.bps.org.uk/publications/journals-and-periodicals/international-coaching-psychology-review-vol-14-no-1-spring-2019.html
Books  

My first book, NLP - Skills for Learning, has been republished as a free ebook, get a copy here:

http://bookboon.com/en/nlp-skills-for-learning-ebook

Structure of Magic, vols 1 & 2

Bandler & Grinder

Patterns of the Hypnotic Techniques of Milton H Erickson MD, vols 1 & 2

Bandler & Grinder

Patterns of the Hypnotic Techniques of Milton H Erickson MD, vols 1 & 2

Bandler & Grinder

The Brain that Changes Itself

Normal Doidge

Growing Up With Lucy

Steve Grand