With this tool you can easily browse open OAI-PMH repositories from several organisations.
The OAI-PMH verbs Identify, ListSets, ListMetadataFormats, GetRecord and ListIdentifiers from the OAI-PMH Version 2.0 Specification are implemented (ListRecords is not provided, use ListIdentifiers and the GetRecord instead).
Suggestions for additional OAI-PMH repositories and questions can be sent to oai@coret.org or via @coret.