Creator of the Virtual Museum, one of the winners of the Open Culture Data challenge 2014.

Virtual reconstruction of the Amsterdam Crystal Palace that opened in 1864 and was destroyed by fire in 1929.

Historical reconstruction of the propaganda exhibitions in Munich in 1937: Haus der Deutschen Kunst / "Entartete Kunst".

Several websites about classical Dutch and German cinema.

Founder Agency for Historical Consultancy 30-45.

Creator and manager since 2009 of 'The 1920s Berlin Project', an online virtual reconstruction of a neighbourhood in Berlin in 1929.

Historical advisor for several big national and international film and television productions, museums and educational institutions.

Clients: Klokhuis (NTR), De Oorlog/13 in de oorlog (NPS), Discovery Channel, KRO, VPRO, RTL, MTV, NCRV, Verzetsmuseum Amsterdam, Openluchtmuseum Arnhem, Zuiderzeemuseum, Museum van de 20e eeuw, Herdenking capitulatie Wageningen, Parool, Trouw, HP de Tijd and many others.