If you're a mom, you've probably been targeted with ads about lactation supplements while on social media. (rebelliousjezebel.com)
Because of increasingly precise location tracking, your phone can collect records of where you go, and the services you use can apply that data to help companies target you with ads. (entrepreneur.com)
No one likes being targeted with ads for an item they bought on your website over a week ago. (adgo.io)