Business Ideas to Build

Business Ideas to Build is a catalog of 381 businesses worth starting, each one taken from a complaint people made in public. Every entry shows the evidence, who is asking, what to charge, how long a first version takes, and a market estimate. All of that is free to read, and every idea links its original thread.

The catalog is organized like a newspaper: a front page, a hot list of the strongest ideas this issue, 21 sections from small business operations and accounting to real estate, education and travel, and an analytics page with the numbers behind the catalog. Each idea has a Hotness score from 1 to 5 that weighs pain, willingness to pay, demand, competition gap, ease of build and recency.

When one fits, one credit unlocks two things for that idea. The business-plan prompt covers the offer, the price, the first buyers and a ninety-day calendar, ready to hand to an AI agent. The growth playbook is thirty weekdays of conversations and proof, not an ad plan. You keep both and can come back to them any time.

It suits service businesses, side businesses and solo founders who want a real customer problem before they pick a name. A new issue arrives as the catalog grows, with a free weekly letter.