One of the key tensions of the 21st century will be between closed and open. Open societies versus closed. Open technologies vs proprietary. Open journalism versus propaganda. In that context, how are the principles and technologies that built the Internet and World Wide Web are being integrated into government and society? From open source to open data to open innovation to open journalism to open science to open government, the idea of “open” has been getting considerable traction. What does it mean, in each context? What should we know about “openwashing” and fauxpen data?