Growth Memo offers research-backed analysis of SEO, organic growth and AI-driven search, including studies of user behavior and traffic attribution. Issues combine data, practical methods and planning frameworks, with premium tools for subscribers.

Alexander Chukovski writes about how Google changes affect job boards and recruiting sites, backed by his own testing and client data. Recent issues cover Indexing API changes, Google Jobs outages and a 600-query study of AI Overviews on job searches.

Salience Index tracks developments in generative engine optimization (GEO), covering how AI search engines and crawlers change and how visibility-tracking tools measure them. It offers sourced, fact-checked analysis, with claims marked as verified or claimed, so readers can evaluate tools and tactics without relying on vendor pitches.

A newsletter by a search veteran examining how AI assistants shape buyer behaviour and what Google referral data can and cannot show about it, plus research on how language models store and retrieve facts. It also offers commentary on Google's slow AI model rollout and its competitive position.