Janetter - Janetter is a Twitter client application. Faster, smarter, and more powerful.
7 Speed Reading - Learn to read 3x faster
Tweeticide - Tweeticide – Delete All Tweets is a commercial app that enables you to delete all of your tweets at once.
Readlax Chrome Extension - Chrome Extension - speed reading tool, online reading
YoruFukurou - YoruFukurou (NightOwl) is a Twitter client for Mac OS X, designed for Twitter addicts.
Tweak Web Fonts - Surf your favorite websites with clarity.