This document discusses open data sharing and standards. It provides examples of open data sets available through Bristol's open data portal, including government, community, education, energy, environment, and health data. It also discusses open research data storage at the University of Bristol, as well as challenges with sharing sensitive or not-so-open data, and tools for mediated or remote data sharing like the Bristol Online Surveys system and DataSHIELD library. It concludes with questions around who should pay for data sharing, the pros and cons of mediated sharing, what standards exist for "data diplomacy", and whether that last question even makes sense.