*This is my submitted paper to ElPub, a conference running in Cyprus over the next few days. I’m posting it here as a kind-of-preprint. Comments and thoughts are welcome. The version in the proceedings is available online as part of Chan and Loizides (eds) Expanding Perspectives on Open Science: Communities, Cultures and Diversity in Concepts and Practices. * Abstract The debate over the meaning, and value, of open movements has intensified.