Outbrain is an online advertiser specializing in presenting sponsored website links. Outbrain is an advertising company. It uses behavioral targeting to recommend articles, slideshows, blog posts, photos or videos to a reader, rather than relying on a more basic "related items" widget. The sites with the recommended articles pay Outbrain for this service, and Outbrain pays the site on which the links appear. Outbrains promoted articles are found on more than 35,000 websites, and serves over 250 billion recommendations and 15 billion page views per month. Outbrains recommendations reach over 87% of US Internet users.