Wal-Mart Gets New Ammo in Web Battle With Amazon

In its ongoing struggle to lure web shoppers from Amazon.com, Wal-Mart has picked up a new ally: messaging startup Tango. As of Tuesday, consumers in the U.S. can shop for 2 million products — everything from apparel and jewelry to electronics — via Tango. A shopping tab will appear on the service allowing users to purchase products from Wal-Mart and Chinese e-commerce giant Alibaba. The startup has 300 million users, who turn to the app for Skype-style video chats, casual games, photo sharing and to watch the occasional live concert.