We all know, When we search for any product, google lists out ads from all potential brands who are related to the product. However, you will likely see more ads soon from companies that already count you as a customer, and not only when you search.
Well, This isn’t too new. Facebook and Twitter have been doing this for a while now.
Reports say, Google is beginning to let advertisers upload lists of their customers’ email addresses in order to target those people with ads when searching on Google, watching videos on YouTube or checking email on Gmail. Thereby, brands may be able to target people that Google identifies as having similar characteristics to the people in their email lists.
To accomplish this customer matching, Google will be cross-referencing email lists from brands with the email addresses tied to people’s Google accounts (considering the number of Gmail users). Google will use a process called “hashing” to disguise the email addresses on both sides of the match and prevent any personally identifiable information from being exposed.
There is a way to opt-out of their new third-party email address ad targeting system.
How to Opt-Out:
You can do this by switching off Ads based on your interests on the Google ad settings page (for logged-in Google users) at: https://www.google.com/settings/ads. This page gives you direct control over how your interests are used when displaying ads via Google-associated sites. Though the descriptions on this page do not currently explain that the new third-party email lists case is included, turning off the interest-based ad preferences will also turn off the use of the third-party email address lists for your logged in account.
Thanks for the opt-out tip, Lauren Weinstein.