ソース:[1] Advertisers Push Big Tech to Adopt Standards for Transparency in Ad Sales - WSJ (https://www.wsj.com/articles/advertisers-push ...)[2] Key ad industry players propose new standards to Big Tech for digital auctions - WSJ (https://vertexaisearch.cloud.google.com/groun ...)[3] Antitrust Enforcement and Big Tech Valuations: Navigating Regulatory Risks in 2025 (https://vertexaisearch.cloud.google.com/groun ...)