Google appears to have a tool or mini app for almost anything. Here are some of their answers to making information available to the greatest number of people.
(look at 1-800-GOOG-411)
Result pages include headers to delineate logical sections.
Promotes results that are Accessible.
Full-text Access to public-domain works.
A simple yet functional HTML mode that works well with screenreaders.
A lightweight user interface that is also speech-friendly.
Easy-to-use textual directions.
A functional, yet speech-friendly user interface.
All services that use Google Accounts provide an audio alternative for the visual challenge-response tests that are used to distinguish humans from machines.
A mobile lens for viewing the web that produces Accessible views.
Allows uploaded videos to contain captions/subtitles in multiple languages for viewers who are hearing-impaired or unfamiliar with the original language.
IM clients inside a web browser can pose Accessibility challenges, but the use of the open Jabber API means that Google users can choose from a variety of Jabber clients, many of which work well with adaptive technologies.
Here's an exception to the rule that we deliver most things through a web browser. Our experimental Voice Local Search service lets anyone who can speak into a phone search for a local business by name or category; get connected to the business free of charge; get the details by SMS if youâ€™re using a mobile phone. (Just say "text message".)