Wal-Mart Expanding Grocery Service.

NEW YORK (AP) — Wal-Mart Stores Inc. is expanding its online grocery service. The world's biggest retailer says the service will soon be in Atlanta; Charlotte and Fayetteville, North Carolina; Nashville, Tennessee; Tucson, Arizona; Colorado Springs, Colorado; Salt Lake City and Ogden, Utah. More markets will be added in coming weeks. There is no subscription fee for the service, and orders can be picked up for free. Customers can take advantage of same-day pickup if they place orders before 10 a.m. Wal-Mart is looking to keep up with Amazon's Fresh grocery service and with Target, which announced earlier this month that it's teamed with Instacart on online grocery delivery.