Spritz Bookmarklet - Speed-read on any website
Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.
Reading Time - Tells you how long an article takes to read
YoruFukurou - YoruFukurou (NightOwl) is a Twitter client for Mac OS X, designed for Twitter addicts.
How Long to Read - Find out how long will it take you to read that book
Talon for Twitter - Elegantly designed, ad-free Twitter experience for Android