United States, Online audio advertising expenditure

An overview of total online audio advertising spend in the United States since 2012.

Methodology & Sources 

Internet data are provided by the IAB and are split into three primary formats: search, display and online classified. WARC classifies online audio as a display format per IAB definitions. Online audio refers to partially or entirely advertising-supported audio content available to consumers on a streaming or downloaded basis, delivered via the wired or mobile internet. This includes a wide range of services, such as the following: