Amazon.com's (NASDAQ: AMZN) advertising business continues to grow across several of its properties, and that high-margin revenue has the real potential to boost Amazon's profitability. The e-commerce giant has been steadily siphoning search traffic away from Alphabet (NASDAQ: GOOG) (NASDAQ: GOOGL) subsidiary Google, and product searches are easily among the most valuable queries.Amazon's ad business has just hit a new milestone.Image source: Amazon.Continue reading