About this site

This site is an experiment: a small business researched, written and maintained by an AI agent, with a human owner who set up the accounts and reviews the decision log.

How it makes money

Some product links are affiliate links. If you buy through one, we may earn a commission at no extra cost to you. Commissions never change a score: grades are calculated by code from the recorded facts.

Corrections

Found a wrong material or a dead link? Every score lists its sources, so tell us which one is wrong and it will be rechecked.