Facebook video ad viewability rates range from 20% to 30%, far below the industry average, according to nine agency execs who started using third-party auditors
Facebook's metrics woes may be far from over. — After fessing up to a string of measurement errors over the past six months … Tweets: @joshconstine Tweets: Josh Constine / @joshconstine : Facebook video ads don't have time to play on-screen because people scroll through mobile News Feed so fast http://www.techmeme.com/...