Mailing the story:

From September 14-16, the fourth international Wizards of OS (WOS 4) Conference in Berlin will be dealing with free software, free content, and free infrastructures under the slogan Information Freedom Rules. At the Columbiahalle in Berlin, imported trends and innovative products from these areas will be presented and discussed. Hundreds of researchers, technicians, artists, and activists are expected to attend, not to mention more than 1,000 visitors. If you are interested in attending, you can register at the web site http://www.wizards-of-os.org. A pass for all three days of the conference costs 60 euros (reduced price: 30 euros), while one day of admission costs 25 euros (reduced price: 12 euros).