The ICSU-WDS & RDA Publishing Data Services group proposes an approach to sharing information about the links between the literature and research data. A set of hubs will collect literature­data (as well as data­data) links from their natural communities using minor extensions to existing local procedures and, in some cases, inference. The hubs agree on an interoperability framework with a common information model and open exchange methods, optimised for exchanging information among the hubs. The hubs will serve as an enabling global information infrastructure for the development of (third party) services.