Mixed and matched from a fork of http://codepen.io/pouretrebelle/full/reGKw and readability text extraction js from https://github.com/Miserlou/OpenSpritz.
Grab the bookmarklet at the bottom of the page to speed-read any web page.
It uses the following API:
http://codepen.io/the-happy-hippo/full/aDHrl?url=page_url