"U.S. adults spend more time listening to digital audio than browsing on social media. With 204 million digital audio listeners in the U.S. or nearly 2/3 of all digital media consumers, digital audio is the second most popular digital activity (based on time spent) for U.S. adults (behind the video). This is leading to more media investment. The latest IAB Internet advertising and revenue report (prepared by PricewaterhouseCoopers) stated that digital audio advertising revenue reached $2.3 billion in 2018 — a 22.9% full-year increase over 2017’s revenue of $1.8 billion."
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