Macroeconomic conditions such as inflation and supply chain instability, alongside industry-specific concerns like restrictions on data-driven targeting of digital ads, are creating a challenging environment for advertising growth. This report provides a deep dive into trends driving spend in eight paid media advertising channels. The forecast includes advertising estimates through 2027 as well as a breakout of advertising revenues from six of the leading US digital publishers (Alphabet, Meta, Twitter, Snapchat, Amazon, and Walmart) through 2023.