The global online advertising market, valued at USD 193,455.1 million in 2022, is projected to grow to USD 529,399.5 million by 2033, reflecting a robust CAGR of 9.7% over the forecast period. This growth is driven by the cost-effectiveness and targeted reach of online advertising compared to traditional methods. In 2022, North America led the market with a 28.1% share, followed by East Asia at 21.1%. Key segments include search engine advertising, which held a 26.5% share, and retail advertising at 18.2%. The U.S. market accounted for 16.5% of the global total, highlighting its significant role in the online advertising landscape.