How Did Macy's Beat Net-a-Porter in L2's Latest Digital Ranking?

L2, a New York University think tank that specializes in retail economics, has released their first-ever ranking of department stores based on digital prowess, and here's a shocker: Macy's has beat out pace-setting digital darling Net-a-Porter. Macy's comes in second on this list, topped only by Nordstrom, while Net-a-Porter is way down the ladder at seventh. Saks, UK-based Marks & Spencer, Neiman Marcus, and Bloomingdale's also rank ahead of of the luxury e-tailer. So, er, how is that possible?