Photo from the hackathon in Stockholm, june 10-11 2011. Photo by Henrik Löwenhamn (CC by)
In 2011 a number of hackathons where arranged by Europeana in cooperation with various European cultural institutions. The hackathon in Stockholm, Sweden, was organized by the Swedish National Heritage Board.  Now it’s time for a second round – this time in  Denmark, Poland, Latvia, Germany and Belgium.
Each hackathon brings together up to 30 developers from the hosting country and the surrounding area. They have access to the diverse and rich Europeana collections containing over 21 million records, Europeana Search API (incl. a test key and technical documentation), digitized WW1 memorabilia collected during the Europeana WW1 road shows in spring 2012 and Europeana Linked Open Data Pilot datasets, which currently comprise about 2.5 million Europeana records available under a CC0 license.
 Participants are encouraged to try out their ideas for creative re-use of the Europeana content and build applications showcasing the social and business value of open cultural data. Possible development themes include mobile apps, mash-ups, social curation, user annotations and World War One.Each hackathon will announce its own winners in 4 categories:
- Best commercial viability
- Greatest social impact
- Most innovative app
- Developers’ pick
Winners from the individual hackathons will be then further evaluated and one finalist per category will be invited and awarded a special prize during the Digital Agenda Assembly on 21-22 June in Brussels.Source: europeana.eu