Does web accessibility add to the cost of a site?
To some extent, but accessibility includes usability, which is a key element of best practice in web design. A fully accessible site should also be highly usable. Accessibility is more a matter of design than quantity of resources, and according to the Norman Nielsen Group, research indicates that the cost of usability doesn’t increase linearly with project size. The widespread adoption of Cascading Style Sheets has facilitated the economical introduction and maintenance of web accessibility by allowing site-wide control of presentation.
