Facebook will have 1.73 billion worldwide users in 2019 and will add a quarter of a billion more users by 2023. These gains are primarily happening in developing countries, while developed markets including South Korea, Japan and France are shedding users.

Twitter’s plateauing user growth has been evident for the past few years. But its user base is stable and ticking upward. We expect it to maintain its substantial influence worldwide as a platform for political discourse and real-time events coverage.

In 2019, the number of social network users worldwide will grow by 5.9% and approach 3 billion. By 2023, almost 80% of the online population will visit social networks at least monthly.

In this year’s Key Digital Trends report, we identify what changes are coming to the digital media and technology landscape in 2020 and why they matter to marketers.

Programmatic advertising will account for 83.5% of all US digital display ad dollars, or $57.30 billion, this year. Growth in social, connected TV and over-the-top (OTT) advertising will drive programmatic display to almost $80 billion by 2021.

Amazon will earn $9.85 billion in net US digital ad revenues this year, representing 7.6% of the market. By 2021, one in 10 US digital ad dollars will go to Amazon.