Readability is a free program that lets you:
- increase the size of the text on any Web page (black print on white background).
- It also removes all ads (click the icon on your browser, and "poof!" - no ads)
- you can get it for your smart phone
- it installs buttons that let you: Read Now, Read Later, Send to Kindle.
You can download it here: http://www.readability.com/addons