YouTube is one of the largest social networks in the world. Social networks (FB, Instagram, Nasza Klasa, etc) are full of video content. VOD-Player or TV, thanks to streaming video on the home screen of the TV (via AppleTV, Google Chromecast) caused a situation in ewhich cable TV or satellite TV has become superfluous. Consumers under 45 years of age spend more time online than offline (newspapers, radio, TV).
Online video advertising gives the convenience of a precise statistics to generate campaign, and thus, the accuracy in the calculation of ROI.