This article may need to be rewritten to comply with Wikipedia's quality standards, as it has formatting, tone, and possibly other issues. You can help. The talk page may contain suggestions. (January 2017) This article contains content that is written like an advertisement. Please help improve it by removing promotional content and inappropriate external links, and by adding encyclopedic content
![Targeted advertising - Wikipedia](https://cdn-ak-scissors.b.st-hatena.com/image/square/8355fb68eac63e9b6febc565ad118a4d7ce4fdd1/height=288;version=1;width=512/https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fb%2Fbf%2FTargeting_in_ad_system.png)