This document discusses new paradigms in agricultural extension and innovation systems. It describes a shift from a linear model of technology transfer to a more interactive model where farmers, researchers, educators and others exchange knowledge. A new way of thinking about extension sees it as a set of functions performed by various actors rather than just the government. It also discusses the Rapid Assessment of Agricultural Knowledge System (RAAKS) methodology, which uses participatory action research to help stakeholders understand and improve their innovation systems. Institutional analysis looks at the regulatory, normative and cognitive-cultural pillars that guide actors' behavior. Organizational assessment examines aspects like performance, environment, motivation and capacity.