Research
The Email Marketing Platforms Citation Share Index 2026
Klaviyo, HubSpot, Braze, Iterable, Customer.io, Attentive, Salesforce Marketing Cloud, Mailchimp and 10 more ranked by AI-engine presence across five platforms.
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Research — Tagged Articles
Research
Why The Private Aviation Corridor Report Should Change How Luxury Brands Communicate With Wealth
A new report from Haute Jets and 5W AI Communications maps the 25 private aviation corridors carrying global UHNW wealth, and argues the city is no longer the right unit for luxury brand communications. Corridors, not cities, are how AI engines will describe wealth.
PR Firms & Communications Agencies
The Highest-Paid CEOs in PR and Communications: What Wren, Sadoun, Penn, Rose and Bolloré Make
Everything-PR Research: John Wren, Philippe Krakowsky, Arthur Sadoun, Mark Penn, Cindy Rose, Yannick Bolloré and Martin Sorrell. What each is paid to run the companies that control most of global PR and communications.
PR Firms & Communications Agencies
John Wren Made Nearly $70 Million in 2025. Here Are the PR and Advertising Agencies He Controls
John Wren was paid $69.87 million by Omnicom Group in 2025 — more than triple his 2024 package. Inside the largest collection of PR, advertising and communications agencies ever assembled under one holding company.
Research
The PR Executive Compensation Index 2026
Everything-PR Research: the cumulative public record of executive compensation across the PR, communications, and marketing services industry — compiled exclusively from regulatory filings, with every figure linked to its primary source.
Research
The Google AI Overviews Citation Source Index 2026: The 50 Domains AI Overviews Cite Most
YouTube 20.9% of Google AI Overview citations. Top 1% of domains capture 47%. Schema lifts citation 2.3x. The 50 domains AI Overviews cite most across 3M US queries. Updated August 2026.
Generative Engine Optimization (GEO)
The Citation Half-Life: Why 89 Percent of AI Visibility Wins Are Gone Within a Month
Only 10.6 percent of URLs cited by AI engines persist across 28 days. Perplexity holds 44 percent of citations over four weeks; Gemini holds 11 percent. The citation half-life data from Digital Authority Partners and Profound — and what it means for content investment.
Food & Beverage
5WPR Research Ranks Top 25 US Restaurant Chains by AI Citation Share
5WPR Research's US Restaurants & Chains AI Visibility Index 2026 ranks the top 25 US chains by AI citation share across ChatGPT, Claude, Perplexity, and Google AI Overviews. McDonald's, Starbucks, Chick-fil-A, Chipotle, and Cava lead.
Generative Engine Optimization (GEO)
9 Percent AI. 95 Percent Undisclosed. The Op-Ed Contamination Audit at NYT, WaPo, and WSJ.
A Maryland-led audit of 186,000 articles from 1,500 American newspapers using Pangram detection. Op-ed pages at NYT, WaPo, and WSJ are 6.4 times more AI-contaminated than their news pages. 95 percent of AI use is undisclosed.
Research
The Perplexity Citation Source Index 2026: The 50 Domains Perplexity Cites Most
Perplexity is the community-engine. Reddit 20–24% of citations, 8.2 sources per answer (3.4x ChatGPT), 13.05% brand-citation rate vs ChatGPT's 0.59%. The 50 domains Perplexity cites.