“What we’ve found is even worse than old-fashioned false advertising. When you look at a billboard, you can tell it’s a paid advertisement — but on Yelp or Citysearch, you assume you’re reading authentic consumer opinions.” So said NY attorney general Eric T. Schneiderman who announced a major crackdown on companies posting deceptive reviews on the Internet. (I give this crackdown three stars.)

+ These fake reviews are a major drag. But let’s not underestimate the effectiveness of good, old fashioned deceptive advertising. Take a look at these old ads produced by the sugar industry, and learn why it’s really healthy to enjoy an ice cream cone shortly before lunch.