Useful Links

21C3 Weblog
http://21c3.ccc.de/weblog/

21C3 Public Wiki
https://21c3.ccc.de/wiki/

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Chaos Computer Club Home Page
http://www.ccc.de/

Chaos Communication Congress 2003 (20C3)
http://www.ccc.de/congress/2003/

Chaos Communication Camp 2003
http://www.ccc.de/camp/2003/

Chaos Communication Camp 1999
http://www.ccc.de/camp/1999/