DECODING POPUNDERS: THE HIDDEN ADS YOU NEED TO KNOW

Have you ever been surfing the web and suddenly a new window sprung into view? That's a popunder, an ad format that can be both annoying. Unlike pop-ups that appear on top of your current page, popunders open in a new tab and are often difficult to close. While some people may find them harmless, others consider them intrusive and disruptive. Reg