(1) The document discusses various business models for monetizing digital content and services, including freemium, premium subscriptions, affiliate marketing, and advertising.
(2) It also examines different types of business relationships like B2B, B2C, C2C and how startups in different regions and countries approach monetization. Challenges for international expansion are mentioned.
(3) Examples of startups and their monetization strategies are provided for various sectors like education, events, marketplace, social networking and more. Revenue sharing, commissions, fees for additional features are some common approaches.