Today 20 years ago the first lights were lit on Chaos Computer Club's Project Blinkenlights, a project to make a giant dynamic billboard out of the Haus des Lehrers in Berlin. Here's a film about the project:
Web page: http://blinkenlights.de/
Haus des Lehrers is just next to the Berlin Congress Center where the C3 conference was held for a long time.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko