The system for advertising on Facebook allows companies to target specific demographics with ads that follow people based on their personal information, but as some companies have been finding out lately, this could lead to their ads showing up on questionable pages. According to Automotive News and The New York Times, Nissan has joined a growing list of companies that has pulled its advertising until the social media giant can guarantee that the ads won't appear on offensive pages.
This issue came about as a result of a group calling for Facebook to ban gender-based hate speech that went unchecked on some fan pages. Apparently, some of these offensive pages even showed images of women being abused. We won't post the names of the offensive pages, but you can find some of them listed on the NYT article, though it looks like most of the pages have since been removed. As for Nissan, AN says that the only ads it had at the time were for Nissan UK, and there is no telling how this issue will affect Facebook advertising in the future.