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Deutsch: Mitmachen!
Europeana will organise a series of hackathons to showcase the potential of the API usage for data providers, partners and end-users. The hackathons are informal workshops bringing together competent and enthusiastic software developers to build cool projects within a day or two (sketches, prototypes, even working applications).
Europeana and partner institutions are organising simultaneous hackathons in
4 European countries (UK, Sweden, Poland, Spain) in the week 6 - 11 June 2011
http://version1.europeana.eu/web/api/hackathons