Perplexity's Ninth Circuit appeal challenges Amazon's use of hacking law to block AI shopping agents, threatening the ad model behind $69 billion in revenue.

Perplexity AI filed its opening appeal brief on April 1, 2026, arguing Amazon misused federal computer fraud law to block competition in agentic AI shopping.

Japan, South Korea, Vietnam, and Taiwan each enacted AI legislation in 2025-2026. Here is what the laws actually say - and how they compare.

Performance Max campaigns face growing scrutiny at high spend levels as practitioners report budget drift, over-indexing on remarketing, and loss of channel control above $100k/month.

Samsung is discontinuing its Messages app in July 2026, pushing millions of Galaxy users to Google Messages with RCS, Gemini AI features, and scam detection.

Paligo's interactive investigation maps AI's chip dependency, energy demands, and content layer - revealing what it actually costs to run a model at scale.

Cloudflare launched EmDash on April 1 - a WordPress alternative with sandboxed plugins, x402 payments, and AI tools that drew criticism from Matt Mullenweg.

Amazon billing, pricing, and fee changes collide with The Trade Desk identity overhaul and dentsu's leadership reset in the week's most consequential ad industry moves.