CARARE has set out to put in place an infrastructure that will continue to increase the archaeological and architectural content available to Europeana by involving and supporting Europe’s heritage national agencies and archaeological research institutions, museums and specialist digital archives. The project aimed to demonstrate the contribution to be made to Europeana by content from these institutions. At the same time, the project has sought to establish a network of institutions and people with the skills, expertise and motivation required to support researchers, archaeological field units, site museums and local institutions throughout Europe to make their content available. Over its three year duration, this Best Practice Network has acted to improve the interoperability of the digital content held by archaeological and architectural institutions and make it accessible through the CARARE aggregation service to Europeana and in principle to other services, helping establish a network of interoperable OAI-PMH compliant repositories and content management systems. CARARE has worked with Europeana to make 3D content accessible to Europeana’s users and to demonstrate the potential for map-based search services for tourism and mobile applications. It has sought to work with Europeana to establish efficient and sustainable processes through which institutions can easily make their content available during and after the project, by defining the CARARE metadata schema as an EDM compliant application profile for the domain, promoting the use of the MINT tool and OAI-PMH repositories for metadata harvesting, establishing the MORE repository and a workflow from content provider to Europeana, and by promoting the Europeana Data Exchange agreement and the acceptance of the CC0 licence for metadata and in this way the move forward to semantically-enriched linked open data.