The document discusses various perspectives on the concept of 'openness' in education and data sharing, highlighting how open educational resources (OER) can enhance collaboration and improve student learning outcomes. Contributions from various educators emphasize the importance of sharing materials, community stewardship, and the positive impact of open licensing, such as Creative Commons, on educational content and applications. Examples include projects like OpenStax College, Al Jazeera's open video repository, and TellMeScotland's public information portal, showcasing the transformative potential of open access to knowledge and resources.