This document provides information on different models for starting an internet-based business and strategies for managing investment opportunities or "deal flow". It discusses 7 common business models including advertising, brokerage, e-commerce, freemium, virtual goods, pay-per-use, and data mining. It also outlines Dave McClure's AARRR customer acquisition framework and provides graphics showing common metrics and acquisition funnels. Additionally, it discusses different deal flow sources for investors like angel networks, universities, news, and databases. Finally, it outlines a typical process investors use to evaluate opportunities from an initial screening to due diligence.