The ChromeVox screen reader is an extension to Chrome that brings the speed, versatility, and security of Chrome to visually impaired users.
Its simple yet powerful navigation is easy to learn and quickly gets new users up to speed browsing web sites and web-based applications eyes-free. Check out the documentation at http://code.google.com/p/google-axs-chrome/ for the user guide, tutorial, keyboard shortcut and developer reference guides.
Note: ChromeVox is still in development and currently doesn’t work in conjunction with desktop screen readers. In order to best use ChromeVox on your computer, you will need to disable your desktop screen reader when using ChromeVox.
ChromeVox is just one of the Google Accessibility extensions. Be sure to check out ChromeVis, ChromeShades, and ChromeLite as well!