31. Marketplace of Infinite First Dates

Ian just bought a MacBook on eBay, and now the seller has disappeared with his money. Chase just sold his car to a guy he met on Craigslist, but not after some shady meet-ups. These tools have been around for years, and regardless of how questionable they may be at times, people love them or people hate them. If only there were a more centralized place that held us all accountable for buying and selling things – like a store, but on the internet.