• CLARIN centres
  • See ​Centre Registry
• ​Hathi Trust
  • ​http://quod.lib.umich.edu/cgi/o/oai/oai
• ​The European Library
  • ​http://data.theeuropeanlibrary.org/oaipmh/OaiPmhHandler (restricted access based on client IP)
  • See also ​http://labs.europeana.eu/api/oai-pmh-introduction