Plenty of jobs exist today that didn't exist 10, 20 or 30 years ago – social media analyst, app developer, etc. – but we're not exactly awash in jobs, either. So what happened to all of those old jobs? This list of pictures will go over a few jobs that have gone the way of the dinosaur. And while the world's hordes of unemployed students may disagree, it's probably a good thing that most of these jobs are gone.