How to Make It on Craigslist
It's very impressive that he's able to earn so much money and support his family via Craigslist, but I can't help but think about how useful (or not useful, really) his job is for the overall economy. Basically, he's another middleman - buying goods for a low price and selling them higher. Without him in the picture, buyers could have purchased their items for less and saved money. I just don't see how this job adds a service to society.