This article aims to investigate the culture of the developers of free software, especially as regards collaboration and productive organizational and social innovation. It discusses the relationship between immaterial labor and free software collaborative development. It starts with the main feature of software development with open source: a productive partnership. This implies the use of living knowledge and the formation of a shared intersubjectivity. Communication mediated by language is the basis of this production. The article also discusses the relationship between collaborative production and innovation. Collaboration extends the communicative interaction between producers, opening up more possibilities for innovation. Intersubjectivity shared condenses in a specific cultural background. It is concluded that the culture of the developers of free software, as generated from the productive collaboration, serves as a context for collaboration and innovation.