Part of GEOly's "GEO / AEO Expert Watch" series — meet Christopher S. Penn, a quick map of their public work and where to follow them, with links to the original sources.
Who is Christopher S. Penn
Co-founder and Chief Data Scientist at Trust Insights and co-host of the Marketing Over Coffee podcast, prolific on generative AI, analytics, and marketing data science. He is a leading voice on measuring AI's real business impact—from generative search to dark-funnel influence.

These experts focus on making AI visibility measurable and accountable to the business — moving from vanity metrics to citations, mentions, answer share and conversion. Their recurring focus areas include: AI marketing, analytics, Trust Insights.
What GEO / AEO practitioners can learn from Christopher S. Penn
- Rankings are no longer the finish line: in a zero-click, AI-answer world, being cited/recommended is closer to real influence than position alone.
- Define new KPIs: citation counts, share of mentions, answer share, AI-attributed conversions — you can only optimize what you can quantify.
- Tie it to the business: connect AI visibility to revenue, leads and branded search to justify sustained investment.
GEOly angle: Analytics angle: measuring generative AI search and dark-funnel influence.

What it means for brands going global
For global-facing brands, stand up an "AI visibility dashboard" early: track citations and mentions on core questions, benchmark competitors, and try to tie it to store conversions. GEOly’s brand GEO audits are built around exactly this measurable frame.
Want to see how your own brand shows up across ChatGPT, Perplexity and Google's AI answers — and how you stack up against competitors? That is exactly what GEOly's brand GEO audit measures: citations, share of mentions and answer share, tracked over time.
Watch & listen
Prefer video or audio? Follow Christopher S. Penn's talks and conversations here.



