A combination of factors drove the worst quarter ever for big tech growth, though the secular shift online of the economy and society will continue.

Advertising demand is down, reflected in lower prices. Ads did better the closer they are to transactions, with variability by category.

Efficiencies and AI are the investor-soothing buzzwords going into 2023.

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