Have you ever scrolled through your social media feed and found an ad that targeted you so specifically it almost felt creepy? Maybe you recently Googled "best products for silky hair" or "workout routines to lose weight." Suddenly, you begin seeing an influx of advertisements on Facebook, Instagram, Snapchat, and TikTok that are directly in line with what you were just Googling. How do companies know what you're searching for? How do they understand the exact products that make you compelled to purchase?