About interest-based advertising
Interest-based advertising enables advertisers to reach users based on their inferred interests and demographics (e.g. 'sports enthusiasts'). It also allows advertisers to show ads based on a user's previous interactions with them, such as visits to advertiser websites. To complement interest-based advertising, Ads Settings lets users view and edit their interest and demographic categories.
Interest-based advertising should help monetize your website more efficiently, increase value for advertisers, and provide a better experience for users.