As published by IAB UK: https://www.iabuk.com/press-release/smartphone-video-fastest-growing-online-ad-format Smartphone video is fastest growing online ad format Near half-billion £ rise on smartphone video ads a key factor as phones overtake computers for internet time. Advertisers spent £476 million more on smartphone video ads in 2017, making it the fastest-growing online ad format, according to the latest Digital… Read More Smartphone video is fastest growing online ad format