There are few prevailing myths about advertising on the web that keep advertisers and marketers hamstrung. Do you count the number of people who view a page on your website? It turns out that counting clicks, though it may be one of the most common metrics, doesn’t work that well if you want to know how many people you are truly reaching. Pageviews are out, folks. And real engagement is in. But how do you know that you are really engaging people? Here are three truths about advertising on the web.