Ah, YouTube. It wasn't long ago that it was pumping out around 60 hours of content every 60 seconds, but nothing can stop the video juggernaut. Celebrating its seven years of existence with a video charting its rise, rise and rise, YouTube's official blog has also announced that it's now dealing with an eye-bleeding 72 hours of video every minute. We're still finding all this content as pervasive as ever though, with over 3 billion hours now watched every month. Catch the site blowing its own trumpet in the tribute vid right after the break -- which is all well and good, but where's the free game?