The issue:

How can one make the content of a multimedia resources available to all potential users - including those with special needs?

The Task:

Identify one group with a Special Need and give guidelines for the production of material for this audience

See
Bobby/Cast
http://bobby.cast.org/bobby/html/en/index.jsp

Accessibility sites
http://bobby.cast.org/bobby/html/en/resources.jsp

The inclusion site
http://inclusion.ngfl.gov.uk/

Becta advice
http://www.becta.org.uk/technology/infosheets/html/senict.html

(plus search this site for 'accessibility'