Once hailed as the future of online advertising, banner ads have since sunk into a state of functional utility. They’re a must-do, of course, but no longer exciting or driving huge conversions. And their click-thru rates are minimal: A recent report from Smart Insights puts it at 0.05 percent. But augmented reality might be just the thing to give them a second life and drive consumer engagement with the new technology. A recent AR ad campaign for the 25th anniversary of the Power Rangers TV show reported a CTR of 2.1 percent, and that number is expected to climb higher as more ads hit the market.