About this tool

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 sc