The Chaos Communication Congress (CCC),is an annual conference organized by the Chaos Computer Club. The congress features a variety of lectures and workshops on technical and political issues related to Security, Cryptography, Privacy and online Freedom of Speech - wikpedia
Hackers all over the world are organizing events to bring the congress closer to home. Congress Everywhere: allows those unable to attend the Congress in Hamburg to celebrate their own Hackcenter experience, watch the streams, participate via twitter or chats, drink Tschunk, cook and have a good time.
CCC-TV, offers a wide variety of video and audio material distributed by the Chaos Computer Club provided in native formats (usually MPEG and/or Vorbis families) for online viewing. Older, archived recordings might require proprietary players. The media files on this site can also be downloaded for offline consumption - media.ccc.de
The Chaos Communication Camp is an international meeting of hackers that takes place every four years, organized by the Chaos Computer Club (CCC).