Whereabouts in are you from? <a href=" http://catraffictickets.com/index.php/critical-essays-on-margaret-atwood.html ">thesis on online shopping</a> "Merchants today are looking for a way to differentiate themselves," said Christina Norsig, chief executive officer of Pop-Up Insider, which connects retailers to potential pop-up spaces. "We're really seeing a change in marketplace."