TechDis Sim-Dis offers a demonstration of proof reading issues using a Shockwave video.
Dyslexia comes under the umbrella term Specific Learning Difficulties or Differences (SpLD) which may also include Dyspraxia, Dyscalculia, and Attention Deficit Disorder (ADD) covering a wide range and variation in the type of difficulties linked to written language, organisational and time management. Visual and auditory perceptual skills also vary with for example strengths in design and idea generation but perhaps difficulties with co-ordination, hand writing and numeracy. Concentration, memory and study skills may be assisted by both human and technology support with the acquisition of various coping strategies to enhance learning. (Further information from the British Dyslexia Association)
SCIPS – Characteristics of Language/Comprehension Difficulties Impacting on Learning and Teaching. The W3C Web Accessibility Initiative (WAI) provides a collection of resources on how people with disabilities use the web.