Thru-you was absolutely fantastic even just on its own, but the fact that it was all just samples of work from random people on YouTube made it completely amazing.

It's definitely worth a listen, the whole album is very solid and there are lots of different musical styles (track 3—I'm New—is my favorite). All the tracks are listed at http://thru-you.com/

He also:

Never changed the original keys

Tried not to use popular videos

Did the whole thing in Vegas Pro (iirc)