Why only running meta ads is a $100K mistake

A weekly email with the best of marketing, AI, and business.

You are receiving this email because you subscribed to Castleberry’s newsletter. https://www.castleberrymedia.com/

Welcome to Marketing in the Age of Machines. Each week, we bring you the following:

👉 An innovative marketing strategy that has worked for others.

👉 The 2 most relevant contents in marketing, AI, and business that will help you understand the ever-changing landscape.

👉 3 tools for the Marketer of the Future.

👉 The quote of the week. A simple take on everyday marketing concepts.

Problem
Meta-only growth eventually stalls: CPMs rise, performance gets volatile, and you’re competing harder for the same attention, so scaling becomes more expensive and less predictable.

Solution
Add YouTube to create demand upstream while Meta captures it downstream. Run simple, direct-response creatives to broad audiences, then judge impact by blended outcomes (MER, branded search lift, retargeting efficiency), not just last-click.

Lesson
Scaling isn’t “better ads,” it’s better channel economics. When one channel gets taxed, you win by adding another that creates incremental demand and lowers acquisition costs across the funnel.

1/. First-Party Data Fuels AI Advertising Success, Especially in Performance Max
As ad platforms lean harder on AI, first-party data is the main lever you control—and Performance Max benefits the most from it. Clean CRM signals (revenue, LTV, qualified customers) help Google optimize for higher-value conversions, not cheaper clicks.

Read the full post here:

Generate B2B Leads With Just One Click

Yes, it’s real. No spam, no random lists. Our platform delivers qualified B2B leads straight to your inbox using gated content.

2/. How Marketing Leaders Navigate Disruption with Empathy and Purpose
Disruption is now the default, and the post argues the fix isn’t chasing trends—it’s building a steady way to decide. It recommends anchoring on customer insight, a purpose backed by action, and clear standards that keep teams aligned, while using empathy and consistency to build trust in noisy markets.

Read the full post here:

👉 Tools in the Age of Machines:

  • Strella: AI-moderated customer interviews that turn feedback into actionable insights fast.

  • Sitefire: Identifies high-intent website visitors and automates personalized outreach.

  • Consensus: Turns demos into interactive, trackable experiences that generate intent signals and speed up B2B pipeline.

If a colleague forwarded you this newsletter, and you want to subscribe, here is the link