Belgium.be, the official website of Belgium, is using Drupal at http://forum2010.belgium.be. This forum site has been put together in preparation for our Presidency of the Council of the European Union in the second half of 2010.
Perhaps the most remarkable aspect is the fact that the site was built in less than 10 days. The Chancellorship of the Prime Minister picked Connexion to build this site with the help of Internet Architects.
The site is available in 4 languages so all Belgian citizens can express their opinions and engage in interactive discussions about European issues.
In good Drupal style, the site boasts a number of social networking features such as personal profiles, blogs and forums to connect a community of over 60,000 users. Users can customize content in Chinese Simplified, Chinese Traditional and English. Other features include video, newsletters, an events calendar, as well as a mobile version of the site at http://m.englishonline.org.cn.
SourceForge operates many of the sites that had a huge impact on my early Open Source career, including SourceForge.net (the world's largest open source software development and distribution environment), Slashdot (the web destination that pioneered community generated content and that provided inspiration for some of the features in Drupal 1.0), ThinkGeek (my favorite online shop of cool stuff and whose t-shirts turned me into a walking Open Source
billboard evangelist), NewsForge (who published an instrumental Drupal 4.7 review), Linux.com (who published many great Drupal articles), freshmeat.net (where I publicly announced Drupal 1.0 on January 15, 2001; e.g. check this comment from 2001 on the Drupal Freshmeat page), and more. And last but not least, VA Linux's IPO (now SourceForge, Inc) helped make Linux a success, which is how I got involved with Open Source development in the first place. Fantastic news!