Book Video Club - Quick video summaries of the top business books for startups
Yout - YouTube to Mp3 Converter
Wibbitz - Watch video summaries of the news you want.
Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
GIFit! - Quickly turn YouTube videos into GIFs (chrome extension)
You-Get - Command-line utility to download media contents from the web