The biggest challenge (and opportunity) facing retailers in Paid Search is complexity and the speed of innovation. In an interview with Netconcepts founder and president Stephan Spencer, direct marketing guru Alan Rimm-Kaufman said every week brings new innovations, more options and more complexity, and retailers and agencies alike need to scramble every week to keep up. He doesn’t see this trend slowing â?? if anything, it may be accelerating. If youâ??re into thinking about future, he encourages you to check out …”