15. Viewable Impressions とは?
定義:広告の50%以上が最低でも1
秒以上ユーザーの視野にある
Changing How the World Sees Digital Advertising (ComScore, March 2012)
http://www.comscore.com/jpn/Press_Events/Presentations_Whitepapers/2012/Changing_How_the_World_Sees_Digital_Advertising
15 Consumer & Online
Microsoft Confidential