The ROAS Report / Insights

Buy attention
that compounds.

Practical newsletter-advertising guides for growth teams who want better customers, clearer measurement, and fewer expensive guesses.

Browse the library

The field library

Eight guides for
buying smarter.

Start where your current media plan breaks. Each guide is built to be read, marked up, and used in the next planning meeting.

01Newsletter fundamentals

What Is Newsletter Advertising? A Brand Buyer's Guide

Newsletter advertising lets you reach new audiences inside their inbox. Learn core formats, buyer economics, and how to test your first campaign.

A field guide from DONUT Press Media

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02Buying economics

How Much Do Newsletter Ads Cost? Buyer's Pricing Guide

Learn how newsletter ad pricing works across flat fees, CPM, and CPC models. See real ballparks to forecast your first meaningful test.

A field guide from DONUT Press Media

Read the guide
03Publisher diligence

How to Choose Newsletters to Advertise In: Scorecard

Go beyond list size with our 100-point scorecard. Vet audience fit, engagement quality, and publisher reliability before you spend.

A field guide from DONUT Press Media

Read the guide
04Channel strategy

Newsletter Ads vs. Meta Ads: Practical Comparison Guide

Compare newsletter advertising to Meta ads across scale, trust, and attribution. Learn how to run a complementary reallocation test.

A field guide from DONUT Press Media

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05B2B growth

B2B Newsletter Advertising Guide: Reaching Decision-Makers

Discover how B2B newsletter sponsorships reach buying groups, complement LinkedIn, and drive pipeline for long sales cycles.

A field guide from DONUT Press Media

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06Measurement

How to Track Newsletter Sponsorships: UTM & ROI Guide

Master UTM taxonomy, dedicated landing pages, and CRM reconciliation to track newsletter sponsorships accurately and prove true ROI.

A field guide from DONUT Press Media

Read the guide
07DTC growth

DTC Newsletter Advertising: Diversify Beyond Meta Guide

Learn how DTC newsletter advertising helps brands diversify acquisition, improve contribution margins, and reach high-intent consumers.

A field guide from DONUT Press Media

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08Buying models

Direct Sponsorship vs. Ad Network: Which Buying Path?

Compare direct newsletter sponsorships and ad networks across control, scale, and reporting to find the ideal buying approach.

A field guide from DONUT Press Media

Read the guide

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The signal before
you spend.

Get one clear note on campaign data, channel shifts, and the parts of the buy most teams only see after the budget is gone.