Is Wal-Mart gaining on Amazon.com?
For almost a decade, Wal-Mart Stores (WMT, news, msgs) has been boasting that it will dominate Internet retailing the way it dominates strip malls, toppling Amazon.com (AMZN, news, msgs) as the world’s largest online merchant. And every year, those boasts have proved hollow. But this holiday shopping season, Wal-Mart has started aiming at what it sees as Amazon’s Achilles’ heel: the costs and delays of shipping online purchases to buyers.