- Artchive - Artchive art repository (content used with permission)
- Bibliopolis - Bibliopolis collection (content used with permission)
- Digitaal Erfgoed Nederland (DEN) - domain expertise and cultuurwijzer metadata of various art repositories
- Getty Research Institute - AAT, ULAN, and TGN vocabularies (used with permission)
- Instituut Collection Nederland (ICN) - domain expertise and user studies
- Netherlands Institute for Art History (RKD) - RKDartists&, RKDimages and IconClass
- NWO CATCH/CHIP Project - conversion of ARIA dataset to RDF, API testing
- NWO CATCH/STITCH Project - cooperation on facet browser and metadata alignment
- NWO ToKeN/I2RP Project - suggestion interface and temporal/event-based reasoning
- Rijksmuseum Amsterdam - collection metadata and user studies
- Rijksmuseum voor Volkenkunde (Leiden) - collection metadata
- Royal Tropical Institute (KIT) - collection metadata
- Stichting Volkenkundige Collectie Nederland (SVCN) - thesaurus
- SWI Prolog - Server software and Semantic Web development platform
- Visual Resources Association (VRA) - VRA vocabulary
Finally, we would like to thank all E-culture MultimediaN Project Members for their many contributions to the project.
This research was supported by MultimediaN project (www.multimedian.nl) funded through the BSIK programme of the Dutch Government.

