Some influencers accept free products as payment for endorsements, others charge thousands of dollars for a single post. While the compensation scale varies by following and content type, some marketers are concerned that teaming up with social media influencers is getting expensive.

Influencer marketing is growing around the world, and a significant amount of activity is migrating to Instagram Stories. However, fraud is also growing, and that threatens the authenticity of influencer marketing.

Instagram Stories is increasingly popular with social media marketers. Last year, one in three Instagram posts containing "#ad" was a story, according to a study by Klear.

Facebook reported its Q4 2018 earnings on Wednesday, beating expectations for ad revenue and user growth. In this eMarketer Analyst Insight, Senior Analyst Jasmine Enberg and Principal Analyst Debra Aho Williamson explain four key takeaways for advertisers.

After Facebook’s tumultuous year, the future of social media is in question. In this report, we predict what’s in store for 2019.

Social behaviors are shifting to stories. Advertisers want to be where users are, but how can they create effective ad campaigns that drive results? We spoke with executives at Facebook, Instagram and Snapchat to get the secrets to story advertising success.

While Snapchat and Instagram may appear similar to users, marketers take very different approaches when they use these platforms.

In the latest episode of "Behind the Numbers," analyst Debra Aho Williamson joins us in the studio to talk about social stories—what she calls a 21st Century daily diary. What is it about stories that users and advertisers alike seem to find so appealing?

With its increased investment in Instagram Stories, Benefit plans to focus on both organic and paid content in 2019. And rising usage in swipe-up behavior—when a user swipes up on stories content and is taken to a landing page on the brand's website—is opening the door to new opportunities.

The New York Public Library is getting readers to continually engage with a feature originally intended for expiring content.

Stories are hot in social media, and the ad opportunities are growing fast. How are consumers using stories, and how do they respond to marketing in stories?

Among the $327.28 billion spent worldwide on digital advertising in 2019, 61.2% will go toward advertising on Google, Facebook and Alibaba. This report includes our latest global ad spending forecast by country, region and company.

This year, 84.8 million people in the US—or roughly a quarter of the population—will use Snapchat, a 7.1% increase from 2017, according to eMarketer estimates.

This year, 104.7 million people in the US—or 31.8% of the population—will use Instagram, a 13.1% increase from 2017, according to eMarketer estimates.

Instagram is quickly gaining users in Latin America. eMarketer estimates that the number of users more than doubled between 2015 and 2018, from 54.9 million to 125.9 million.