The link is: http://www.google.com/accessibility/labs/search/
Yes, I remember this one going back to 2006. here's what Google says about it now on the linked-to page. Accessible search What is this page? In July 2006, we launched a small search experiment called Accessible Search, which searched the web for pages that were more accessible tobrowsers at the time. Since then, much has changed on the web, and this experiment is no longer supported. To learn more about accessibility andsearch, see Accessibility in Google Search.