What I'm listening to today: "The Mother of All Funk Chords", Kutiman
This was posted in 2009, at the peak of Internet Optimism, as track 1 of "Thru You", a project mixing unrelated YouTube videos of people playing music into complete songs.
This song summarizes YouTube in the image of every single person on earth simultaneously playing a giant chord on every single instrument. It remains the most powerful document I have ever encountered for the power of the Internet.