Found in comments here: http://imgur.com/gallery/n2QFVCE
Stashed in: Facts, Cool, gifs, Reaction GIFs!, Good Guys!, Nirvana!
Good Guy Weird Al always asks permission.
Imgur comments: http://imgur.com/gallery/n2QFVCE
Smells Like Nirvana:
The Long, Remarkable History of the GIF
The Art of Writing Great Google+ Posts | Copyblogger
Civilization's Painkiller: A Brief History of Opioids
GitHub Got Silly Rich. Next Step: 'Make More Awesome' - Businessweek