This website gathers and publishes evidence about the impact of open educational resources (OER). It is maintained by the OER Research Hub project. The purpose is to help people understand the impact of OER. You can explore the data in a number of ways. The hypothesis pages explain the essence of each study area and include summaries of the evidence base. Try searching the evidence entered so far, or see the distribution on a global map. You can review and vote on recent evidence entries or review our maps for OER policies and OER projects. Need help? Here's a more detailed guide to the site.