Auto Scroll the Web Page Whilst You're Reading
To increase or decrease the speed, you can change the 25 in setTimeout(‘pageScroll()’,25) to however many milliseconds you want to pass before updating the page. If you change it to 100, for example, it will scroll more slowly so the lower the number the faster it will scroll.
Drag this bookmark to your browser's bookmark bar for easy access. Pressing it once will start scrolling and pressing it again will stop.
Been using this on Verge's long articles (but works on any site) and it makes it quite nice to read whilst still being able to eat at the same time :D