I am not a big fan of YouTube since a lot of the videos that it contains seem pointless to me. However, once in a while, I hear about something great, go see it, and am just amazed at the creativity, time and effort that is put into the videos that are put on there. A recent example of this is the Ep album Thru You, made by Israeli mix artist Kutiman.
What he did is quite a feat. He searched through YouTube to find videos of various people playing musical instruments or singing. He then stitched all of these excerpt together to compose 7 different songs.
Here is my favorite of the pack. If you like it, check out the rest on the link above: