How ads follow you around the internet

Hint: It’s why every site asks you to accept cookies.


You’ve seen the pop-ups: “This site uses cookies to improve your experience. Please accept cookies.” Cookies do improve your experience. They function as the website’s short term memory; with each new click you make, cookies help the site identify you as the same person. Imagine every time you add something to your cart and click away, it disappears. Or each time you load a new page on Facebook, you have to log in again. Without cookies, the online world we know today couldn’t exist.

Why advertisers are tracking your emojis

With Twitter’s new emoji tracking tool, advertisers can track how and when users post emojis and determine users’ emotional state. Depending on those feelings, they can deliver ads that best match their emotions at that time. Advertisers say that this will allow them to deliver more relevant ads, but there are opposite concerns about consumer privacy. Watch this video to learn how advertisers are using this tool and how it changes the ads users see on Twitter.