Your e-business must comply with State and Commonwealth Disability Discrimination legislation. Essentially, the goods and services you provide on your website must be accessible to all members of the community, including those who have disabilities. You will be exempt from breaching discrimination laws if the adjustments required to enable use of the goods and services on your website would cause unjustifiable hardship for you as the provider.  

The World Wide Web Consortium has created guidelines for compliance with such disability discrimination laws. These include; providing equivalent alternatives to auditory and visual content, not relying on colour alone, using plain language and explaining abbreviations. It may be useful to retain a consultant to assess the accessibility of your website.