Lorenz Matzat is a freelancing journalist in Berlin. He is working in the field of Open Data/ Open Government and of Datajournalism. Together with two partners he is running the company OpenDataCity, which designs and implements datajournalism-applications. He was part of the team winning the Grimme Online Award (Germany) and Online Journalism Award (USA) for the application Tell-All-Telephone about data-retention of mobile phones in 2011. http://www.zeit.de/datenschutz/malte-spitz-data-retention
Follow him on Twitter http://twitter.com/lorz.
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