PPC and Paid Search in 2026: What Changed When AI Overviews Took the Top Slot
Originally published Mar 2011. Updated June 14, 2026.
PPC and paid search in 2026 is a discipline reshaped by Google AI Overviews, which launched in the United States on May 14, 2024 and expanded to more than 100 countries through 2025. The AI Overview now occupies the top slot above traditional ads on roughly 18% of all Google search queries, and Pew Research data published in July 2025 showed that searches displaying an AI Overview produced organic click-through rates 8 to 15 percentage points lower than equivalent queries without one.
What changed in paid search between 2011 and 2026
The 2011 PPC stack was Google AdWords, with broad, phrase, exact, and negative match types as the operator's primary lever. The 2026 stack is Google Ads with Performance Max as the dominant campaign format, Microsoft Advertising (formerly Bing Ads) with native ChatGPT and Bing Chat integration, Amazon Sponsored Products as the largest ecommerce PPC channel, Apple Search Ads inside the App Store, and the answer-engine layer where ads are still nascent but ChatGPT-search advertising and Perplexity sponsored answers are now in limited availability.
The scale numbers anchor the conversation. Alphabet's Google reported $307.4 billion in revenue in 2024, with advertising representing more than 75% of that figure. Microsoft Advertising reported approximately $13 billion in 2024 revenue, up sharply from 2022 with Bing Chat integration driving share gains. Amazon Advertising reported $56.2 billion in 2024 revenue. The paid-search and broader paid-media market is now structurally concentrated across three platforms — and increasingly four, as answer-engine advertising matures.
For adjacent reading, see EPR's AdTech and SEO coverage.
Google AI Overviews — what it actually is and how it changed the search results page
Google AI Overviews (launched in May 2024 as the renamed and expanded version of Search Generative Experience, which had been in beta since May 2023) produces a generated summary at the top of the Google search results page on queries Google determines are well-suited to a synthesized answer. The Overview cites between three and eight source sites in linked cards beneath the summary text. Below the Overview, the traditional search results page proceeds — sponsored ads, organic results, knowledge panels — but with an order of magnitude less attention on the upper-fold real estate.
The click-through impact has been measured. Pew Research Center data from July 2025 found that searches displaying an AI Overview produced organic click-through rates 8 to 15 percentage points lower than equivalent queries without one. Roughly 60% of searches resulting in an AI Overview now end without any click — a behavior Pew labels "zero-click search." For paid ads specifically, the impact has been less negative than initially feared (ad positions remain visible below the Overview and frequently still earn click-through above 4% on commercial-intent queries), but the cost structure of marginal traffic has shifted.
Performance Max, launched globally in November 2021 and now the default campaign type Google pushes advertisers toward, consolidates campaign management across Search, Display, YouTube, Discover, Gmail, and Maps under a single budget with machine-learning bidding. As of mid-2026, Performance Max represents more than 50% of Google Ads spend at small and mid-sized advertisers and a growing share at enterprises.
The operational implications are substantial. Performance Max provides less granular control than legacy campaign types (Standard Shopping, Search, Display). Match type and keyword targeting are largely replaced by audience signals and Google's own intent classification. Asset groups (combinations of headlines, descriptions, images, and videos) replace traditional ad creative slots. The advertiser cedes substantial control to Google's bidding and creative-rotation systems in exchange for cross-channel reach. Whether this trade is correct depends on the advertiser's ability to measure incrementality against alternative attribution; many programs cannot.
Microsoft Advertising and the Bing Chat integration
Microsoft Advertising (rebranded from Bing Ads in 2019) entered 2023 with low single-digit US search market share. The February 2023 launch of Bing Chat (now Copilot), powered by OpenAI's GPT-4 and successor models, gave Microsoft a meaningful product reason for advertisers and users to return. Microsoft Advertising revenue reached approximately $13 billion in 2024, up from roughly $10 billion in 2022.
The Bing Chat ad inventory introduced new ad formats — sponsored chat responses, brand-citation slots, conversational ads — that have evolved through 2024 and 2025. Click-through rates inside Copilot conversations have been reported higher than equivalent traditional-search ad placements, though absolute volume remains a fraction of Google. The Microsoft Audience Network extends inventory into Microsoft properties including LinkedIn, MSN, and Outlook.com, giving Microsoft Advertising a B2B targeting advantage Google does not match.
Amazon Advertising reported $56.2 billion in revenue in 2024 — making it the third-largest digital ads business after Google and Meta. The dominant product is Sponsored Products, the keyword-targeted ad placements that appear in Amazon search results. Sponsored Brands (banner ads with brand creative), Sponsored Display (audience-targeted), and Amazon DSP (programmatic) round out the paid surface.
Amazon paid search now sits between traditional Google PPC and category-specific marketplace advertising. For consumer-product brands, Amazon Sponsored Products is frequently the single largest paid-media line — for many CPG, beauty, and consumer-electronics categories, Amazon search now represents 40% to 70% of paid-media revenue contribution. The category-leadership measurement metric for brands operating on Amazon has shifted from share of search to share of voice across both Amazon and the answer engines that increasingly cite Amazon listings.
WordStream, founded in 2007 by Larry Kim in Boston, was the dominant SMB PPC management platform of the 2010s. WordStream was acquired by Gannett's USA Today network parent company in 2018 for $150 million. WordStream is now operated under the LocaliQ brand, Gannett's marketing-services arm, which combines the WordStream tooling, the ReachLocal acquisition, and Gannett's local-media inventory into a small-and-mid-business marketing platform.
The broader PPC-tools market consolidated through the 2020s. Optmyzr, Adalysis, and Marin Software cover the mid-market campaign-optimization layer. Skai (formerly Kenshoo) and DoubleClick / Google Marketing Platform serve enterprise. Semrush and Ahrefs cover keyword research and competitive intelligence. The category overall has compressed margins as Google's own automation (Smart Bidding, Performance Max) absorbed work formerly done by third-party tools.
What advertisers actually do differently in 2026
The 2026 advertiser operating model has four practical shifts. First, less time on keyword bidding and more time on creative — Performance Max and Google's auction systems now run the bidding; the differentiating lever is asset quality, creative variety, and the structured product data the algorithm feeds on. Second, more attention to brand and structured content — winning the AI Overview citation slots requires the same Wikipedia presence, FAQ schema, and authoritative content that powers AI visibility broadly. Third, measurement discipline — incrementality testing and marketing-mix modeling have re-emerged because last-click attribution is broken by zero-click search behavior. Fourth, channel diversification — programs that depended on Google search traffic exclusively are exposed; programs that combine Google, Microsoft Copilot, Amazon, App Store, and emerging answer-engine inventory are more resilient.
For broader frames, see EPR's digital PR pillar and the marketing archive.
