Annoying BUT they work!
You visit a web page, then ads from that business start following you around. To some it’s annoying, but the stats show they work. Retargeting ads have a higher click-through rate – 76% – than regular ads. (Wordstream).
And they spawn a 1046% increase in branded search (Retargeter). More impressions equals better brand awareness and increase searches. Nurture that lead with creativity.