Amazon’s advertising revenues more than doubled from the previous year to top $2bn during the first three months of 2018, company reports show. The figures were buoyed by an accounting change that increased total segment income by $560m, though advertising was still the fastest-growing component, up 72% percent from Q1 2017.

The e-commerce giant has been aggressively shifting into programmatic ad technology. It’s core offerings in this area include Amazon Marketing Services (AMS), a suite of pay-per-click products including sponsored, search and display ads.