British Dyslexia Association: http://www.bdadyslexia.org.uk/

SASCSpLD Assessment Standards Committee: http://www.sasc.org.uk/

PATOSS (The professional association of teachers of students with specific learning difficulties) https://www.patoss-dyslexia.org/ 

Go to NHS Choices homepage http://www.nhs.uk/Conditions/Dyslexia/Pages/Introd...