DEPTLESS sources · the reading list 22 sources · verified live --:--:-- CT
Sources · where the playbook comes from

The authoritative reading list behind the department.

Every seat on the board is grounded in someone's published research. These are the 22 sources we actually trust — marketing-automation ops, AI in marketing, SEO and content, social and email, the technical standards, and the one podcast worth the commute. No content farms. Each one open in a new tab.

// 01Marketing automation & ops5 sources

Practical guides on inbound marketing, automation, CRM workflows, and sales/marketing alignment for SMBs.

Tutorials on connecting apps and automating marketing, sales, and ops across thousands of tools.

Visual no-code automation guides for multi-step marketing workflows.

Open-source workflow automation, including AI-agent and LLM-powered marketing automations.

Email, audiences, customer journeys, and small-business growth guides.

// 02AI in marketing4 sources

The leading source on applying AI and agentic automation to marketing (the MAICON people).

Andreessen Horowitz research on AI agents and how companies automate go-to-market.

Deeply researched essays on product, growth, and AI tooling for operators.

Strategy and research for content marketing, increasingly AI-assisted.

// 03SEO & content6 sources

Daily SEO/PPC news and how-tos with strong AI-search coverage.

Authoritative news and tactics on SEO, SEM, and algorithm changes.

Data-driven SEO and content guides on ranking and link building.

Long-running SEO authority; technical SEO and Whiteboard Friday.

Research-backed SEO, keyword, and content tutorials.

SEO, content, and PPC guides tied to the Semrush platform.

// 04Social & email tooling3 sources

Social-media strategy, scheduling, and content creation for small teams.

Social-media research, trends, and tactical playbooks across platforms.

Broad digital-marketing, SEO, and content tactics for growing traffic.

// 05Standards & technical3 sources

Official Google docs on SEO, structured data, crawling, and indexing.

The shared structured-data vocabulary that powers rich results and machine-readable pages.

Open protocol for instantly telling search engines about content changes.

// 06Newsletters & podcasts1 source

Weekly podcast on the latest AI news and what it means for marketers.

From reading to running

You could read all 22 for a year. Or put a department to work this week.

These are the people we learn from — and the standards (Schema.org, IndexNow, Google Search Central) we wire straight into every site so the work is machine-readable from day one. Deptless is that whole reading list, turned into a schedule.