Does anyone else like to surf Craigslist for fun? I assume I’m not the only one. You can learn a lot about the quirks of our society on Craigslist. The same goes for the quirks of our health care system. Reading Craiglist, a foreigner visiting the U.S. would come away with a disturbingly accurate view the cost of care, how medical marketing works, and even important ethical issues. Here are a few observations I’ve made in my forays through the site.