This document outlines a list building system that can generate $250k per year with an investment of only $25 per week using solo ads for traffic. It describes a formula for building a list of 40,000 subscribers over the course of a year through consistent weekly investment. With a list of this size, passive monthly income of around $40k or $500k annually can be achieved. The system focuses on the internet marketing niche and paid traffic from solo ads to quickly and consistently build the list.