Here are some useful links on PDA:
http://www.autism.org.uk/about/what-is/pda.aspx
http://www.pdasociety.org.uk/what-is-PDA/diagnostic-criteria
PDA blogs:
https://dinkyandme.wordpress.com
https://autismamazon.wordpress.com
https://piratesgotoargos.wordpress.com
https://advocate4pda.wordpress.com
http://livingwithpda.blogspot.co.uk
http://duckandme.blogspot.co.uk
https://planetautismblog.wordpress.com
https://dragonriko.wordpress.com
Educational Guidelines:
http://www.pdasociety.org.uk/education/educational-and-handling-guidelines
http://www.pdasociety.org.uk/professionals/awareness-matters-booklet
Extreme Demand Avoidance Questionnaire’ (EDA-Q):
http://www.pdasociety.org.uk/resources/extreme-demand-avoidance-questionnaire
Radio Clips
https://www.bbc.co.uk/programmes/b0b48l4n
TV Documentaries:
From the series Born Naughty, episode 1 (Honey) and episode 4 (Charlie)
http://www.channel4.com/programmes/born-naughty/episode-guide/
Girls with Autism Documentary – Limpsfield Grange School (Beth):
Articles Published
70% of children with Pathological Demand Avoidance missing out on education
Raring 2 Go! 