Webnauts

1. Google likes accessible pages: http://webstandardsgroup.org/resourc...accessibility/
2. White paper: SEO - A Positive Influence on Web Accessibility

Here http://www.bigmouthmedia.com you can download a free paper as PDF or as zipped HTML files which intends to show how search engines through their algorithms and SEO, as a popular marketing technique, have led to a growing interest in making web content more accessible.

It will also raise awareness among the SEO community of the Web Content Accessibility Guidelines published by W3C.