Growth Memo is a research-driven newsletter on SEO, organic growth and AI-driven search aimed at senior marketing leaders. Issues combine original user-behaviour studies, analysis of how AI answers affect traffic and conversions, and practical planning frameworks.

Mass of Niches is a fortnightly newsletter on the economics and operations of direct-to-fan sales for artists and labels, covering costs, returns, payment and checkout details, and what goes wrong. Readers get structural, numbers-driven analysis aimed at making direct relationships with audiences financially and operationally sound.

TSD's blog covers software engineering and business practice, with posts on why live ERP lookups break e-commerce sites, how developers adapt to AI coding agents, and the hidden performance cost of Serilog enrichers. Readers get concrete failure stories and practical fixes drawn from the team's real projects.

Agentic Landmark is an advisory practice that maps which shopping agents evaluate a brand's products and how to make product data machine-readable for them. Its issues argue, with a small controlled test and close reading of Google's product feed specification, that agents recommend what they can verify rather than what is objectively better.