Now a days reading on Internet is getting really very difficult. This is all because of lots of advertising options on internet and revenue hungry publishers.
See the example below:
Its very cluttered. The text color used for the actual content doesn't show well. In all its difficult to read actualy content.
In response to all this madness : Readability
Readability is a browser bookmarklet (sort of like a bookmark on steroids). Readability works with most major modern browsers and has been tested on many news sites and blogs. It isn’t 100% effective but works surprisingly well. See the result after using this bookmarklet. 
How to get this?
Drag the below link to you browser's bookmark toolbar:
When visiting a web page worth reading. simply click on the bookmark "Readability".
Here a demo video.
[...] Readability – Its an awesome script, increases readability of a page. [...]