Some state that business models exist since the beginning of economic activity. Management research, however, has emphasized the study of business models only recently (Morris et al., 2006). An accepted definition conceptualizes a business model as «the method by which a firm builds and uses its resources to offer its customers better value than its competitors and to make money doing so ... [It] can be conceptualized as a system that is made up of components, linkages between components, and dynamics.» The purpose of this presentation is to approach the topic of business models from a system dynamics perspective. It especially emphasize the revenue models and the value proposition models of business models. Case studies are used to explain different structural aspects and how they influence their respective dynamics. The presentation develops a set of canonical sub-models for business models and thereby provides means to formalize and enhance the discussions about business models in the organizations and strategy literature