• Marketing Week, Friday, September 18, 2015 8:23 AM

Advertisers will soon have the option to pay for an ad on Facebook only if it is 100% viewable as the social network bows to concern from brands over how much of their ads are currently seen by consumers. Facebook says it will work with third-party verification company Moat to determine whether an ad has been viewed. There is, however, no minimum time that the ad has to be in view for. The new buying option will be available across all advertising that appears in Facebook's news feed including video, text and images.

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