​Digital resources:

  • Yiddish Sources: Yiddish Sources is a website for anyone who is interested in Yiddish and Yiddish Studies, which I have edited since 2005. 
  • European History Primary Sources: EHPS is an index of digital archives and libraries/ born-digital sources on the history of Europe hosted by the European University Institute in Florence, Italy. I built two version of EHPS since 2008 and was involved as editor until mid-2014. I am still the technical maintainer. 



  • (2011-2013): I was the original developer of the community version of, a website for professional historians working on Dutch history, which was officially launched in January 2014 by the Huygens Institute for the History of the Netherlands.