Amazon Sellers, the marketplace is thinning fast, but the ones left are getting stronger. Fewer new sellers, record Prime penetration, tariff pressure, and AI-driven shopping are colliding at once, and I’m breaking down what that really means for margins, visibility, and leverage in 2026.  If you sell on Amazon, this is about who survives, who scales, and who gets squeezed next. Full News: https://amazonseller.school/amazon-news-seller-shakeout-ai-shopping-wars-tariff-pressure-are-reshaping-2026/ Here's what were covering today: Amazon Seller Signups Collapse—But Survivors Are Winning Bigger Than Ever https://www.marketplacepulse.com/articles/amazon-seller-registrations-hit-decade-low-in-2025?utm_source=substack&utm_medium=email U.S. Amazon Prime Tops 200M Members—And Sellers Feel the Impact https://cirpamazon.substack.com/p/us-amazon-prime-membership-keeps?utm_source=post-email-title&publication_id=1011181&post_id=185116195&utm_campaign=email-post-title&isFreemail=true&r=pi2v&triedRedirect=true&utm_medium=email Google Unveils AI Shopping Protocol That Could Reshape Product Discovery https://techcrunch.com/2026/01/11/google-announces-a-new-protocol-to-facilitate-commerce-using-ai-agents/?utm_source=substack&utm_medium=email Amazon Pressures Suppliers After Tariff Cuts—Pricing Talks Begin https://www.reuters.com/business/retail-consumer/amazon-pushes-suppliers-cuts-ahead-supreme-court-tariff-ruling-ft-reports-2026-01-13/?utm_source=substack&utm_medium=email Should Sellers Optimize for AI Ads and Agentic Shopping? The Clock Is Ticking https://www.ecommercebytes.com/C/abblog/blog.pl?/pl/2026/1/1768832692.html Stop Treating Agentic AI Like a Helper — Give It the Job https://www.adweek.com/sponsored/stop-treating-agentic-ai-like-an-assistant/ We’ll unpack how consolidation, Prime scale, AI discovery, and supplier pressure are reshaping Amazon—and what disciplined sellers should do next to stay profitable while others quietly exit.