The document provides an investment summary and analysis of Facebook. It summarizes that Facebook owns the largest social networking platform, is disrupting online advertising, and is led by a purpose-driven management team. It then proceeds with a 5-step analysis: 1) Defining Facebook's business and platform; 2) Meeting the managers including Mark Zuckerberg and Sheryl Sandberg; 3) Analyzing the market and competition; 4) Identifying competitive advantages around large user base and data capabilities; 5) Looking at Facebook's current business model and future opportunities around user and mobile growth and new products. The analysis provides an overview of Facebook's business and strategy to evaluate it as an investment.