You know those ubiquitous web links at the bottom of the page on sites like Fox News or CNN? They’re usually titled “from around the web” or “more promoted stories”. They have catchy titles like “The 10 Best Resorts in South America” or “14 Things Surprising Things Your Cat is Telling You”. Everybody says they hate them, but we do click on them. I admit, I’ve clicked on them. You end up on a site filled with weirdly useless but addictive content, or you are directed there by a company called Outbrain. I always thought this kind of thing was...