Commercial open source businesses face a unique challenge compared to their proprietary software counterparts: many potential customers already have access to a free version of their product. Determining which open source users are most likely to be interested in paid support, premium features, or other business offerings can be daunting. In this talk, we present a novel framework that commercial open source businesses can utilize to score leads based on their open source usage. This framework helps them establish a thriving business around their open source project.