CONTENIDO is one of the leading content management systems in german speaking countries. Since 2001 on the market and used in more than 15.000 websites. And since the beginning under the GPL without exception or dual licensing. CONTENIDO has more than 10.000 user registred in the community.
More information about the CMS you will find on: http://www.contenido.org/
Englisch website is coming soon...
The backend of the CMS is already in English and German, now we want to increase our internationalization efforts by reaching more translations.