Amazon shares sunk more than 7% in after-hours trading on Thursday despite the tech and e-commerce giant reporting a 14% increase in revenue in its fourth quarter. Advertising services revenue, which ...

Amazon's advertising business delivered $21.3 billion in revenue in the fourth quarter, growing 22% and narrowly beating Wall Street estimates for $21.2 billion. During the quarter, the company ...

Walmart isn’t generally thought of as an advertising business, but the retail giant now makes more money selling ads than ...