With smartphones in the pockets of 3/4 of the UK population, and accounting for over half of all online minutes, the mobile revolution is in its final stages, allowing us to survey its impact

As the number of social media users continues growing, untapped older demographics and Instagram help the Facebook suite of apps grow in the UK, but Snapchat is the social media app of choice for UK teens

News publishers face issues with brand attribution as social media platforms overtake search as the main news aggregators online, while small UK video publishers have become unlikely winners in a global market for soft news, infotainment and gags that dominate social video

Cross-device identity profiles are used to stitch together fragmenting online ad audiences, but also to enable new links between advertising and marketing, across European markets

This moves value from media itself to understanding each consumer and how they access content and services on proliferating connected devices

By 2020 we predict that 58% of all UK online ad buys by value will make use of high-quality audience IDs, led by the largest advertising platforms but limited by privacy regulation and cost

Fashion underpins the growth of ecommerce; online took a 14% share of all fashion retail in the UK last year and is set to rise further, challenging the economics of physical retail 

Mobile is a key driver, it is changing research and shopping habits, and in turn affecting supplier product cycles, merchandising and marketing strategies 

Social media has disrupted the traditional shopping funnel, changing how trends and styles proliferate and shifting the sites of authority and influence in a £66 billion sector

This year marked the second annual IABUK Digital Upfronts. As well as Facebook, Google/YouTube, Aol, Yahoo!, Twitter, BuzzFeed, Vice and others, several traditional media companies – Sky, The Guardian and Global Radio – participated, reflecting the rising importance of digital media and digital media buyers to their businesses

Many of the pitches were informed by the key shifts in online content: it is increasingly cross platform, driven by mobile devices and focused on video programming, and these formed the main themes of the event

A key piece of context is the rise of social media and the shift to programmatic buying, which continue to driven down pricing for all but the most valuable inventory – audience scale, high value audiences and premium content have never been more essential