ChromeVox is a capable screen reader – for free
Comments (0) 
Latest CromeVox update, 1.16.0, fixes the problem with “voice” key combinations previously working only on Chromebooks. Namely, I never managed to get it work with replacing “Search + Control” keys with alternative combination on Win or Mac Chrome browser installations, but now, the extension is adopting itself based on the host. And it just works.
This makes CromeVox an amazing JavaScript based screen reader, a truly open and free alternative for all users who need assistive technology to browse the web. WAI-ARIA support is thorough, and web authors should take this advantage to offer great audio interfaces and user experience. If your page or web app is written based on web standards, chances are you have instant accessibility out of the box, no extra work required.
For all desktop platforms, free – working great screen reader. You need to install Chrome Beta Channel and needs little fiddle if you are on Linux. I would like to hear if you use it and tell me how helpful it’s for you.
There are three more Chrome accessibility extensions coming in package with CromeVox – ChromeShades, ChromeVis and Lois TTS Voice. You can download all of them for free from the code site.
Themocracy