A few good Youtubes from my favourites.

Why GLaPOS can't rob someone. http://www.youtube.com/watch?v=bpHVEIkAfLU

Bunch of random awesome stuff. http://www.youtube.com/watch?v=Vo0Cazxj_yc

"Revenge" Song parody with Minecraft :D http://www.youtube.com/watch?v=cPJUBQd-PNM

Super Mario stage show http://www.youtube.com/watch?v=SabxXGVbRXA

Something. http://www.youtube.com/watch?v=2HjLN1TA3bc

TF2 live action video. http://www.youtube.com/watch?v=piZrjDTx2eg

Something else. http://www.youtube.com/watch?v=tWvrTcrGm4A

Something else else. http://www.youtube.com/watch?v=bkNzH1PgR-E

My thoughts on TF2 http://www.youtube.com/watch?v=_8FCfqu2fb0

Enjoy!