The Chinese-owned short-form video app TikTok exploded onto the social media landscape worldwide in 2019, but roadblocks could keep it from rapidly expanding its user base in 2020.

How will social network ad spending and social usage change in 2020? And what will happen in hot-button areas, such as privacy, ad targeting and political advertising in social media? Here’s what we think lies ahead.

eMarketer principal analyst Mark Dolliver and vice president of research Jennifer Pearson discuss children's behavior online, the screen time stigma and YouTube child policy changes. Then, junior analyst Blake Droesch addresses questions about a TikTok sale, Facebook's stance on political ads and a new way to limit who can reply to your tweets.

This report looks at how digital technology fits into the daily lives of US kids—digital natives who, compared with teens and young adults, aren’t really all that digital.

eMarketer principal analyst Debra Aho Williamson discusses one thing that summed up 2019 for her, as well as some of her predictions for 2020, focusing on Facebook.

eMarketer global director of public relations Douglas Clark reveals our first-ever forecast for mobile reddit users in the US and the platform’s new live streaming feature.

eMarketer senior forecasting analyst Oscar Orozco explores our latest adoption numbers for Snapchat worldwide and the impact of face filters that went viral.

eMarketer forecasting analyst Peter Vahle discusses our latest adoption figures for Snapchat in India, Indonesia and Japan, and the success of recent platform additions.

eMarketer forecasting analyst Peter Vahle discusses our latest Facebook adoption numbers for France and Germany, and why continued losses are expected through 2023.

Social networks are no longer what they used to be. Case in point: The rise of short video-app TikTok in 2019 is a sure sign that what defines a social network will be very different in 2020.

eMarketer global director of public relations Douglas Clark compares our latest US adoption figures for young adults on Facebook against those of its sister platform Instagram and fierce competitor Snapchat.

eMarketer principal analyst Mark Dolliver, junior analyst Blake Droesch and vice president of content studio Paul Verna talk about a potential Facebook injunction, Hulu binge ads, YouTube's ads of the year, Lyft's new car rental service, Pandora voice ads, Google's top searches of 2019 and more.

With 2020 shaping up to be a chaotic year, these are the video trends marketers will need to pay attention to.

eMarketer vice president of business development Marissa Coslov explores Facebook adoption in the UK by age group and why the platform is losing teens and young adults.

At the end of last year, we asked three important questions about Facebook in 2019.

eMarketer vice president of business development Marissa Coslov discusses our latest estimates for revenues derived from app installs in the US and growth drivers like Snapchat and TikTok.

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.

Instagram will remain the world’s second-largest social network in 2019, with 788.4 million users. Growth will primarily come from emerging or developing economies, including Russia and India, but every country that we track will add new users in 2019.

Snapchat will have 293.0 million users in 2019, up 14.3% on the previous year and outpacing the growth rates of Facebook, Instagram and Twitter. Growth has returned to core developed markets, while the pace of growth in developing markets is significant.

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.