The document summarizes a webinar about open source business models presented by Francois Letellier. The webinar covered market dynamics in software, free/libre/open-source software business models, and the "FLOSS marketing mix". It discussed terminology, software as an immaterial good, legal frameworks for software protection, and proprietary software market dynamics. It also outlined categories of FLOSS players and examples of FLOSS business models including services, distributions, dual licensing, and mutualized R&D.