Archive - Really Good Business Ideas

Substack Leaderboards Demystified: The Exact Criteria and Whether They Matter

A detailed breakdown of how the Rising, Top Bestseller, and New Bestseller leaderboards actually work and why they matter less than you think.

Mar 4 • Casandra Campbell

February 2026

The 2–3 Sentences That Get AI To Cite Your Work

The 2026 inverted pyramid framework for writing content AIs can instantly parse, quote, and trust.

Feb 18 • Casandra Campbell

How to Write Substack Welcome Emails That Drive Retention and Engagement

A human-first approach to the most important automation on Substack

Feb 11 • Casandra Campbell

How the Best Experiences Engineer Social Chemistry

New research reveals why carefully curated communities and exclusive events feel magnetic.

Feb 4 • Casandra Campbell

January 2026

Substack Buttons: Your Complete Guide to High-Impact Calls to Action

Really good business ideas to help you start and grow a profitable business (including on Substack). All ideas are backed by research and analysis.

Jan 30 • Casandra Campbell

Offline Is the New Online: The Unshittification Trend Creating New Business Opportunities

Plus 7 business ideas to take advantage of this trend.

Jan 28 • Casandra Campbell

How to Filter Your Substack Subscribers by Section

A practical guide to seeing who’s subscribed to what (and how to use it).

Jan 23 • Casandra Campbell

Everything You Need to Know to Start and Grow a Business on Substack

No experience needed.

Jan 23 • Casandra Campbell

4 Substack Segments You Should Email

And how to find them.

Jan 22

Treatonomics Is Bigger than a Recession Cycle. It's a Cultural Shift

Why the lipstick effect no longer explains what’s happening.

Jan 21 • Casandra Campbell

How to Email Your Substack Subscribers (Without Publishing a Post)

And why it's important.

Jan 20 • Casandra Campbell

Is Substack Free? The Real Costs Explained for Writers and Readers

Really good business ideas to help you start and grow a profitable business (including on Substack). All ideas are backed by research and analysis.

Jan 16 • Casandra Campbell

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