The document outlines 11 lessons learned from the experience of building SlideShare into a leading platform for sharing presentations. It emphasizes the importance of speed, focus on execution over ideas, building products for own use, using metrics to guide decisions, hiring design engineers, finding communities, and outsourcing non-core functions. Key recommendations include making the app useful by solving problems well, prioritizing speed, listening to metrics over loud voices, focusing on users not competition, and not spending too much on business development.