Facebook advertising has come under a lot of scrutiny this year, and things just got worse. In addition to admitting to over-estimating video views in September, Facebook has now confessed to “miscalculating several of the metrics it uses to measure how content performs on its property.” This recent disclosure raises further concerns about the validity of the data reported by Facebook and YouTube, the two dominant players in the digital media playground.Facebook advertising has come under a lot of scrutiny this year, and things just got worse. In addition to admitting to over-estimating video views in September, Facebook has now confessed to “miscalculating several of the metrics it uses to measure how content performs on its property.” This recent disclosure raises further concerns about the validity of the data reported by Facebook and YouTube, the two dominant players in the digital media playground.