The last Kottke.org post about how hot dogs are made was almost 4 years ago, and that video doesn't event work anymore and I say Saturday is the day to learn stuff anyway.
Two things about this video:
1) The scene of hot dogs shooting out of the hot dog maker and into the pile of hot dogs is mesmerizing. Virtually every 'How x is made' video has a similarly awesome shot.
2) These dudes make almost 2.5 million hot dogs per shift, which... Well, there are far, far, far more hot dogs being made in this country everyday than any of us realize.