Paparazzi! - Paparazzi! is a small utility for Mac OS X that makes screenshots of webpages.
CONV. - Convert YouTube video to MP3, GIF or MP4
LightShot - The fastest way to take a customizable screenshot.
Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
Awesome Screenshot - Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and...
You-Get - Command-line utility to download media contents from the web