100 Greatest Youtube Hits in 4 min

A must see video. How many of these do you remember?
Some of the most awesome and funniest moments that have been captured and uploaded to youtube, compiled into a short video, capturing the best parts and beats, while the techno soundtrack is blasting .... What was your reaction (to the soundtrack blasting..) when you first saw these clips?

Besides not being too fond of the soundtrack, although I love techno, I have watched this video 4 times already and finally decided to share it here =D
It has around 800.000 views on Youtube at the time of writing this post.