Step Aside Pop-Ups, Hover Ads Are Here! Copyright © Tanner Larsson http://www.work-at-home-resource-center.com As anyone involved in online marketing has learned in recent times, Pop-Up ads have developed a very negative connotation amongst Internet users the world over. Indeed, there has been an explosion in the availability of software and tools that are designed to block Pop-Up advertising. An estimated 405 million internet users have free access to some form of pop-up blocking technology..