According to a new study, nearly 86% of publishers will offer mobile display ad inventory within the next three months. More than a third of tablet users in the U.S. read newspapers on their devices each month, and even more check out magazines, according to comScore. According to comScore, 181 million U.S. Internet users (85% of the U.S. internet audience) watched more than 39 billion online content videos in September, while video ad views totaled 9.4 billion.