Have you ever wondered, “Why do those ads show up after I leave a website?” It might seem a bit creepy at first, but somewhere a smart digital marketer is using a strategy called Facebook ad retargeting. 

So you are online trying to buy some new shoes and you get an Instagram DM notification and get distracted? A few days later, you are minding your business scrolling through Instagram or Facebook and you start seeing ads for those exact sneakers on Facebook. That’s retargeting.